Trans temp concerns

DougSmith

New member
I know that, Michael, and I completely respect your results and opinion. I'm in no way doubting what you have found in your truck, but in my truck, I saw signs of extremely high oil temps while towing a small camper across Idaho in the summer and running Schaeffer 9000 5W40 synthetic oil. Unfortunately, this was before I had an oil temp gauge, but it is the reason I have one now. The day after that, I lost a piston. Coincidence? I don't think so. As you might understand, I'm a little hesitant to try it again.

Josh, I may something you dont like, but my first question is, why is the new lube always the reason for a failure in an older engine?
It sounds like the issue that caused your problems had already developed before you changed brands. I do know that the Schaeffer's oil does an outstanding job of cleaning up an engine. I plugged up a Amsoil BP100 2 micron bypass filter in 5,000 miles with all the gunk that I had in my engine from the previous 200,000 miles of "supposed" TOP quality oils. Maybe what happened to you could have happened to me if I did not have 2 filters and monitor stuff like that. I knew it would clean, so I checked filters to make sure they were getting warm, when a filter plugs, it wont let any oil into it, so it stays much cooler than before. So if you plugged up the filter you had, it may have been the source of your issues. I dont know, did you run an analysis to see if the lubricant failed?
 

DougSmith

New member
So you have proved you have limited knowledge of oil and you believe God makes Schaeffers, and TranSynd and Amsoil is so so. You have 209,000 miles on your trans and you credit 4 months of using your present fluid for this.

I was being sarcastic, I do know more than an average person about Lubricants, but since I am not a well respected person in your world, do not pay attention to anything I have to offer. Move on to someone else please.

the previous 200,000 miles were almost all using a synthetic of some form or another. I also changed the Allison filter every 5,000 miles whether it needed it or not. The last 50,000 miles or so, my tranny had been doing weird things, like shifting funny, and when the TC would lock up the truck would jerk as it did. I also noticed that I had some very quick shifting to a lower gear like something was not flowing right but it would shift very fast clear through to 6th under heavy acceleration.

As I started to swap over to Schaeffer's Dex 6, which is what my truck calls for, I immediately noticed that the shifts could not be felt. I mean NOT AT ALL. Under heavy acceleration, It would cycle completely through the gears and no more of the fast shift from like 4th almost straight to 6th. After about 3,000 miles, it started to go back to acting weird again, so I did the second fluid change, drain and fill method, and changed the filter. Once again, I noticed immediately that the shifts were unnoticeable and it quit shifting very quickly to 6th under heavy acceleration. I have now put almost 4,000 miles on it since the last swap, and I am about to do the 3rd drain and fill. that should get me over 80% or more Schaeffer's.

Now if my tanny goes out next week, am I going to blame the fluid? No, it had 202,000 on it before i switched and I switched brands at least 2 times on this truck. I already knew something was going wrong 60,000 miles ago. I am just fortunate that I do not tow as often as I used to or I probably already would have had replaced it.

As respected as most of the people are in the Transmission aftermarket world, Most of their knowledge of lubrication is limited at best. Its not like their is a huge market for learning about lubes. It is also key to longevity and durability of everything it touches.
MikeL, I am in no way implying you in this paragraph! I am just stating what I have experienced in other respected shops. If I have a question, you are the first and only person I would call.

I find it odd, that the largest producer of crude oil in the world, Shell, uses Schaeffer's Silver Streak lube on all their drilling rigs all over the world. Shell spent millions of dollars trying to produce a lube that worked as good or lasted as long as Silver Streak does. They could not come close. So right now, Shell uses Schaeffer's grease on ALL of their drill rigs to get you all raw materials to make Rotella and whatever else it is they make. Ironic isn't it.
 
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JoshH

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Josh, I may something you dont like, but my first question is, why is the new lube always the reason for a failure in an older engine?
It sounds like the issue that caused your problems had already developed before you changed brands. I do know that the Schaeffer's oil does an outstanding job of cleaning up an engine. I plugged up a Amsoil BP100 2 micron bypass filter in 5,000 miles with all the gunk that I had in my engine from the previous 200,000 miles of "supposed" TOP quality oils. Maybe what happened to you could have happened to me if I did not have 2 filters and monitor stuff like that. I knew it would clean, so I checked filters to make sure they were getting warm, when a filter plugs, it wont let any oil into it, so it stays much cooler than before. So if you plugged up the filter you had, it may have been the source of your issues. I dont know, did you run an analysis to see if the lubricant failed?
It wasn't an older engine. As I recall, it had around 45k miles on it, but that was 4 years ago, so I may be off a couple thousand. The only reason I tried it is because a friend of mine was a Schaeffer pusher, and I listened to him and tried it. I never tested the oil, and I don't even remember how many miles it had been in the engine. All I know is the oil was getting hot enough that my oil pressure was dropping below 30 PSI at almost 2000 RPM. Like I said, that that time, I didn't have an oil temp gauge, so I have no idea how hot it was getting, but I can only imagine it was at least 260-270, maybe more.
 

DougSmith

New member
It wasn't an older engine. As I recall, it had around 45k miles on it, but that was 4 years ago, so I may be off a couple thousand. The only reason I tried it is because a friend of mine was a Schaeffer pusher, and I listened to him and tried it. I never tested the oil, and I don't even remember how many miles it had been in the engine. All I know is the oil was getting hot enough that my oil pressure was dropping below 30 PSI at almost 2000 RPM. Like I said, that that time, I didn't have an oil temp gauge, so I have no idea how hot it was getting, but I can only imagine it was at least 260-270, maybe more.

It would take oil temps over 300 to burn a piston or anything more than that. There are places in an engine that oil can reach 400 in everday situations. I was just throwing out some possibilities. What I have seen the most of, is that if someone is running Mobil 1, or say Rotella and have engine troubles, then it is something in the engine gave up or a bad part. If someone has engine problems running Royal Purple, Amsoil or Schaeffer's, even Lucas, it is the oils fault. All of the oils I just used as an example are all about 2 times better then the others I mentioned. I just find it ironic how that works.
 

JoshH

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I didn't blame the oil for causing the piston to break. I didn't even blame the oil for the high oil temps. I was simply saying I ran Schaeffers and didn't experience the lower oil temps.
 

Mike L.

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It would take oil temps over 300 to burn a piston or anything more than that. There are places in an engine that oil can reach 400 in everday situations. I was just throwing out some possibilities. What I have seen the most of, is that if someone is running Mobil 1, or say Rotella and have engine troubles, then it is something in the engine gave up or a bad part. If someone has engine problems running Royal Purple, Amsoil or Schaeffer's, even Lucas, it is the oils fault. All of the oils I just used as an example are all about 2 times better then the others I mentioned. I just find it ironic how that works.

All you know is what you read off a brocure and what has been fed to you. didn't you go off the deep end on another subject where you were banned?
You need a life; get one.
All the top name oils are great and you won't make a mistake choosing one. We all have our favorite oils because we experienced no problems using them. This does not mean yours is better.

I just remembered. you were the dick that was telling everyone you used Amsoil and changed your oil every 30,000 miles. WTF? What happened? Oil got a little dirty at that mileage? Let's hear it Richard.
 

MaxPF

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Jan 12, 2011
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I am not going to contribute to a poop storm with anyone. I am just going to share what I know about lubricants. And that is not that much...

And yet, that won't stop you from trying to peddle Schaeffers as the best shit in the known universe...

But Transynd is only made as good as to get Allison out of its warranty period. That is just a fact of life. Allison wanted a great deal on a fluid that would more often then not get them out of paying for transmission warranty period and that is all. Same with any other OEM company out there. ALL OF THEM ARE IN THE PARTS BUSINESS. Does Allison make more money on selling GM, Peterbuilt, Freightliner, CAT, or any of them on the new transmission or the parts after warranty runs out. Um, PARTS!
The problem with this specious argument is that an Allison will easily run out of warranty on plain ol' Dex III. If Allison was interested in selling as many parts and replacement transmissions as possible at the expense of their customers they would never have bothered to have a better fluid developed. Transynd is proven over literally millions of miles and thousands of hours in these transmissions. Can Schaeffers say the same? Nope, didn't think so.

Now all companies tell you that wear is normal. Really, Please explain to me what NORMAL wear is. Is it lubrication wear or is it real honest to god wear that CANNOT be prevented? Hmmm. Ponder that a moment.
So, you're saying Schaeffers will absolutely eliminate any wear whatsoever? That my engine or transmission will never wear out? :roflmao:

Up until a month ago, I thought it was "NORMAL" for my LBZ to burn a quart of oil every 10,000 miles, and GM told me I was lucky, I had better than "NORMAL" loss of oil. Really? Since the second week of Feb, I have not lost any oil in my LBZ and I have 8,000 miles on this oil change. I also have the PCV reroute which I was told by Tony that oil loss would be "NORMAL" with the reroute. Hmmm, ponder that for a minute.
Up until a month ago, weren't you the moron formerly known as eggsack?

HEAT is caused in anything from FRICTION. Eliminate friction and there is an IMMEDIATE, SIGNIFICANT drop in temps.
Oh cool, a guy who admits he doesn't know shit about lubrication wants to school us on friction :rolleyes:

Some friction is needed in a transmission after all it does have things that lock up and use friction discs to control certain functions. The FLUID itself can also cause heat. A fluid traveling at a HIGH rate of SPEED also heats up, so beefing up a pumps flow rate in the same size holes, will also cause the TEMPS to rise. OMG, NO WAY, REALLY? YES, and I mean Significantly at that.
Wow, so, all a fluid has to do is move fast and it will get hot? So, a fluid sitting in a beaker should get really hot - after all, here in sunny AZ the tangential velocity of the Earth's rotation is around 700MPH or so. For that matter, taking into account the Earth's motion around the sun, the solar systems orbital speed around the galaxy, and the galaxy's motion through the universe, the beaker of fluid is moving at something like 320 kilometers per SECOND! That's haulin' ass! The stuff should be flashing into vapor!!!

Humor aside, what heats the fluid is viscous friction. In a trans, this is mainly from turbulent flow in the converter and the pump. Physics being what it is, the main way to reduce heating from this cause is to reduce viscosity. So, what, does Schaeffers have the viscosity of water to achieve this miraculous feat of temp reduction?

So to me, with my very limited knowledge of lubricants and anything else mechanical, this whole deal is be looked at re-actively instead if PRO actively. Preventing something from happening is WAY cheaper than reacting when something happens.

So then it comes to balance and effect. Just because a fluid is a "Synthetic" does not mean that it is the same as the "Synthetic" of another brand. There are differences in all of them. Some use the best stuff they can find, not many companies will do this, then others put what they need to get by, most fall here.
Since were bringing this up, Transynd is fully a Polyalpha olefin base, with just enough paraffin oils to carry certain additives that aren't readily suspended in PAO. You know what Schaeffers is? It's a PAO and parrafin blend. Want to guess what the most stable base oils are? They're not PAO's, they're diesters and polyolesters. Want to know who uses those base oils exclusively? Redline. Well, that's not quite true. Shell and others use them exclusively as well.... in their jet engine oils.

So since Schaeffer's was brought up, this company seeks out the best it can find and builds a fluid to help with the desired effect. If all the best base stocks and additives are comined in proper levels for the specific purpose, then a desired effect will happen. That is what really happens.
So, only Schaeffers is smart enough to use the best base stocks and combine additives in the proper levels, huh? Oh wait, I already established that PAO's, while very good, aren't the best. You may want to alter your sales spiel.

The transmission is a complex subject and in it, there can not be friction modifiers like in an engine oil. BUT, the highest quality base stocks will help reduce heat, improve performance and help get to the desired effect.
You're showing your ignorance again. Except for Ford Type F, all ATF's have friction modifiers.

If you have a problem with heat, a cooler is the best way to reduce heat in fluid outside the transmission itself, I would also add that using a great fluid, also reduces heat and reduces wear inside the transmission so that cooler can work even better.

The stuff that comes in the bottle with the Allison name on it is a decent oil, but it is NOT the best out there. I ran it for 50,000 miles and then I switched to another brand, then I switched to Amsoil and they all were about the same. I just switched to Schaeffer's over the past 4 months, and I have seen and felt significant changes in what I feel in a transmission that now has 209,000 miles on it. The "normal" operating temps is now 10 degrees less than it was with Amsoil. I have not towed my camper with my truck yet. I will report what I find with an ALL stock tranny and a 10,000lb camper later when I get to it.
I think Mike nailed this. You want to credit your recent oil change for all the good in your transmission. Nice try. Thanks for playing :joker:
 
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DougSmith

New member
All you know is what you read off a brocure and what has been fed to you. didn't you go off the deep end on another subject where you were banned?
You need a life; get one.
All the top name oils are great and you won't make a mistake choosing one. We all have our favorite oils because we experienced no problems using them. This does not mean yours is better.

I just remembered. you were the dick that was telling everyone you used Amsoil and changed your oil every 30,000 miles. WTF? What happened? Oil got a little dirty at that mileage? Let's hear it Richard.

Nope, not 30,000, I thought it was 60,000 but after a review of what I was actually doing, uno, owning a bypass filter system that holds 3 quarts of oil, plus adding a quart every 10,000 miles, I soon realized that I was changing the effin oil all the time. Hmmm. Learned about that too.

I clearly stated that any oil is decent oil, and if changed frequently would never be a bad choice. What I am trying to illustrate and is BEING PROVEN right now, is that if there is something out there being made, that is used for the same equipment as the Rotella's and Delo's and Mobile 1s of the world, but yet after say 10,000 miles of use, STILL be a better oil than what you start out with out of the bottles mentioned above, then why would a reasonable person like to learn a little more about why that is? So, I did. I wanted to learn and I spent all last year asking questions of experts, like people using many different brands of oils, and learning what they knew about each. I found that the common theme I was hearing from Schaeffer's users was how little they spent on replacing parts. Like those expensive parts on excavators and dozers and skid steers.

So I went deeper into and learned about this Moly and some other things that oil companies use, like PTFE and what not. I was interested in it and all along I was learning just how bad that the company I was using at the time, AMSOIL, was flat out lying to me.

Then I got a call from a bass fisherman in Alabama that I used to sponsor, and he had heard that I was thinking about using Schaeffer's. So he called and told me that his family, that own a very large landscaping business in Birmingham had been using Schaeffer's for going on 20 years. They own about 15 diesel trucks, 20 some trailers that hauls mini excavators, tractors, graders, something like 30 pieces of equipment that are all over $100,000 each. He was telling me how they used oil analysis offered from Schaeffer's and they monitored their equipment with them and they were getting 750 to 1000 hours per oil change on the excavators and some pieces were doing annual changes. He had said that he can not calculate how much money they had saved, just on the equipment, let alone the trucks. He told me most of the oil changes on the trucks were all over 20,000 miles using Napa filters, not even the Amsoil filter that Amsoil says when used with their oil can get 25,000 miles per change. He says it was close to $30,000 a year they saved on oil changes.
Mike L, I dont give a FU%$ what you think of me or how great thou art, or whatever, but when a guy I had known on a professional relationship calls me out of the blue and tells me what he is seeing in his own families business, I take notice. Not because Mike L says to only use Citgo Fluids or whatever you want used.

Recently I was also made aware of a test that was going on with a mahor trucking company that one of the execs had seen a Schaeffer's presentation. They wanted to see about this for themselves so they did a long term test in a controlled way to track, oil change intervals, via oil analysis, repair costs, fuel economy, and "normal" wear and tear.

So they set up a number of trucks to be totally switched to Schaeffer's and even using the fuel treatments and then tracked their performance gains if any, how many liles, etc and logged everything. After the term, I think was 18 months or 2 years. They presented the finding to the main execs. What was found was that the Schaeffer's trucks gained 5% increase in fuel economy. The oil changes were bumped up 2.5 times less frequently than in the other brands test trucks. That means that if a truck was normally changed at 10,000, then that same truck with Schaeffer's went to 25,000. And the biggie, repair costs on mechanical parts that require lubrication (ball joints, u Joints, etc) was cut 80%. OMG!

This company has 4,000 trucks and over the next 12 months, all of them will be converted to Schaeffer's as one of the largest EVER trucking tests performed proved that WHAT BRAND of oil used makes a difference. That company is Prime Inc. I am sure you have heard of them. They will not release the actual data to the public, because companies that large need every competitive advantage with the high cost of fuel, but with 4,000 trucks a 1% increase in fuel economy is like millions of dollars a year, let alone 5%.

Isnt saving money what it is all about?? Having superior protection at a cost savings is the name of the game. I would think that is why Shell buys their drill rig lube from Schaeffer's. I would assume that it means that Shell is SAVING Money and using drill bits longer than their competitors. It would get me to thinking that there may be more to the story than what YOU are fed or see on TV.

GM, John Deere, FORD, Chrysler, CAT, Kubota,Hitachi, Peterbuilt, ALLISON, et all, are all in the PARTS business. They also all wnat you to use THEIR greases and oils. Hmmm, that alone should raise a red flag about needing to look into this farther.

So if an Allison rep walked into a tranny shop and said hey Mike we came out with a new fluid and we recommend using it in our 2013 transmissions and the warranty is 50,000 miles. You can better take it to the bank that the fluid is just good enough to get the tranny past that on the law of averages. After that, Allison gets to sell parts. Or if a Schaeffer rep walks in and says, Hey Mike, do you do warranties on your transmissions you build? Yep, sure do. Well I got a fluid for you. You can run this in those transmissions and cut your warranty expense in half or more. And we can say this because we have dozens of places using it and this is what they see, and lay out names and numbers of places that use it and shows what they used to spend on warranty replacement parts and what they do now, and see that it is a HUGE difference. I would take it seriously. There has to be something to it, if businesses just like yours are doing it and have been for decades.

Good Luck Mike, I still respect your opinion, no matter what names you come up with. I am sure you keep plenty of transmission parts on hand to repair things that go wrong on your builds. I am sure most of them are needed after the warranty period has passed. But hey, You the MAN!

I learned about something new with an open mind, can you?

I have a life dude, You have no idea what I do on a daily basis. Some days I do have time to be a keyboard jockey. Most times I do not, been really busy here the past few weeks going all over the place.
 

MaxPF

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Jan 12, 2011
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Mesa, AZ
I've been doing the oil temp testing and have seen first hand in my truck that it lowered MY oil temps. I would have NEVER believed it unless I saw it with my own eyes and I had to check my oil adapter T-stat and my oil temp gauge to see if they were still working correctly. I'm running a Mike L. trans, cooler, and C3 oiler but it still has the garage door spring in the pump (not sure this helps cause the higher temps though) and it's always run in the higher temp range. It's been better as of late maybe because the motor is running cooler (less heat transfer :dontknow:). The Mike L. cooler is definitely needed on a built trans and most certainly will help a stock trans. I'm amazed at the results I've gotten so far (and the motor is smoother sounding on top of it) with the motor oil.

I'm not trying to contradicting you Mike. This is only what I've seen and I want to get the Schaeffer 9000 in the 05 LLY to see what happens and to back up my finding on my 02 (which I plan to do this week). I'm at a loss for words in explaining why it has done this. It took 400-500miles to show up though. This is my engine oil temp finding only.

Let the poop storm begin.:poop::shifan:

Here's something to ponder. Lets say your oil temps with Schaeffers really is lower. Does that mean it's a better oil? The problem is, you have no idea why the temps are lower. You jump to the conclusion that it must be due to lower friction, but that may not be the case.

Let me throw another unsupported theory out there: suppose it runs cooler because it doesn't conduct or transfer heat as efficiently as the oils you were previously using. Most of the heat put into the oil in our diesels comes from the pistons. Your DMax and my Cummins have oil squirters that spray oil onto the underside of the pistons to draw away the heat. This is necessary because, unlike a typical gas engine, the combustion chamber of a direct-injection diesel is the bowl in the piston. Now, suppose that my theory is correct, and the Schaeffers doesn't remove heat as efficiently as other oils. The result is that the oil will run cooler, but the pistons will run much hotter.

This is just a theory, and I have no facts to back it up. In fact, I don't even buy it myself. I think a more likely scenario is that something else has changed. Not unreasonable, since your "testing" has no scientific method applied to it. It's all pretty much seat of the pants, so you cannot really say if there is a definitive improvement. Likewise, JoshH saw his oil temps increase when using Schaeffers, and had a mechanical failure on top of it. I doubt either issue was caused by the oil, but rather by some other unknown cause. I'd bet money that with controlled testing you would find that Schaeffers works the same as any other high quality synthetic oil, no better and no worse.
 

super diesel

<<<< Under Pressure
Here's something to ponder. Lets say your oil temps with Schaeffers really is lower. Does that mean it's a better oil? The problem is, you have no idea why the temps are lower. You jump to the conclusion that it must be due to lower friction, but that may not be the case.

Let me throw another unsupported theory out there: suppose it runs cooler because it doesn't conduct or transfer heat as efficiently as the oils you were previously using. Most of the heat put into the oil in our diesels comes from the pistons. Your DMax and my Cummins have oil squirters that spray oil onto the underside of the pistons to draw away the heat. This is necessary because, unlike a typical gas engine, the combustion chamber of a direct-injection diesel is the bowl in the piston. Now, suppose that my theory is correct, and the Schaeffers doesn't remove heat as efficiently as other oils. The result is that the oil will run cooler, but the pistons will run much hotter.

This is just a theory, and I have no facts to back it up. In fact, I don't even buy it myself. I think a more likely scenario is that something else has changed. Not unreasonable, since your "testing" has no scientific method applied to it. It's all pretty much seat of the pants, so you cannot really say if there is a definitive improvement. Likewise, JoshH saw his oil temps increase when using Schaeffers, and had a mechanical failure on top of it. I doubt either issue was caused by the oil, but rather by some other unknown cause. I'd bet money that with controlled testing you would find that Schaeffers works the same as any other high quality synthetic oil, no better and no worse.

Sure I'm not scientific about it and I've already thought of this scenario. I've been modding the oil squirters since 05 to improve cooling to the underside of the pistons (I know, why improve what the factory gave us). An oil NOT taking heat away when it's indirect contact? Come on now. If the oil is not conducting heat away, then why is my overall ECT running cooler? Wouldn't this non transfered heat start being conducted to the rest of the block and what it touches. Why is my trans temps down? Wouldn't there be transference heat there as well? If it's something else, then what, when nothing else has changed besides the oil? I'm on a quest for answers and have done my tests (as unscientific as they may be, they are showing results from street and DD use). Could you please disclose some proof of why it wouldn't be? What has your testing shown. How did you disprove this theory? I would be very interested to see something else that would cause this or is this just an opinion without tests to verify?

For those that are doubting my findings (many of you know how I test stuff and what I make and know I don't BS folks), please DON'T try this oil and continue on your marry way knowing what you have been lead to believe (be it with testing of your own or no). I have no issues with that whatsoever and I wish you luck.

For those that figure that there may/could be a better way, than by all means, TRY it. But please, post your findings (hope you have an oil temp gauge to verify your results). You just might gain something (protection of synthetics). If you don't, have you compromised your motor by running it and trying it? Doubt it.

I'm not going to contribute or take away from this without being able to post positive or negative findings without first having proof of my own testing that actually includes gauges and testing equipment (the transducers I installed on my truck). I was a doubter (BIG TIME). Look in the "oil cooling" thread. I did this test with the understanding that I could post either positive or negative. If you don't like it, don't look at it, and most certainly don't try it. Choice is yours. I'm just trying to help save a few vehicles out there with a known problem (high oil temps especially when towing) anyway I can. I've already spun a main bearing and am trying to prevent it any way I can from happening again. Anyone want to join me on this quest?
 

MACKIN

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Aug 14, 2006
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Not for nothing ,OK might be for nothing , but last I knew Allison NOT GM but Allison will NOT warranty their transmissions unless Transynd was used. I didn't don't desire to read through someones gibberish and see if that was noted. I know that Allison and the beer oil was brought up beyond our particular usage. I know they release a acceptable fluid chart but last I knew for maybe it's extended warranty that Transynd must be used. Again Allison not GM.
 

JoshH

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Feb 14, 2007
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For those that are doubting my findings...

Michael, I hope you don't think I am doubting your results. I do believe that your temps have dropped. I'm just having a hard time believing that it is the oil alone that is responsible for the drop, especially after my previous experience with the oil in question. After reading what you saw, I want to try it again, but it is a pretty big investment on something that I'm not sure will yield the same results for me. Maybe the reason your temps are so much lower than mine were is because you have the external coolers, and my truck was stock with extra heat being added from a second turbo.
 

super diesel

<<<< Under Pressure
Michael, I hope you don't think I am doubting your results. I do believe that your temps have dropped. I'm just having a hard time believing that it is the oil alone that is responsible for the drop, especially after my previous experience with the oil in question. After reading what you saw, I want to try it again, but it is a pretty big investment on something that I'm not sure will yield the same results for me. Maybe the reason your temps are so much lower than mine were is because you have the external coolers, and my truck was stock with extra heat being added from a second turbo.

Oh no. Not pointed at you Josh. It's just in general my friend. This is a hard thing for me to get my head wrapped around. Like I said, I never would have believed it if I hadn't of seen it myself. It's not a conventional thing to see OR hear. I've been testing without the cooler hook up lately Josh. I'm getting similar results. Not as extreme as with it, but similar. I would be more accepting of it if I did find something else has caused it so we could go in that direction. But I changed nothing else, so as of the current, this is it and the only factor involved. I will be testing again latter today to see how it's still comparing with my earlier reports in the oil cooling thread. I wish I had unlimited fuel for these tests.

I feel like were cattle conditioned to being led to the same trough to feed every day. If they relocate the food to a different trough are some of us going to starve?

MACKIN is getting us back to the issue at hand.
 

Leadfoot

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Dec 27, 2006
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Josh, I may something you dont like, but my first question is, why is the new lube always the reason for a failure in an older engine?
It sounds like the issue that caused your problems had already developed before you changed brands. I do know that the Schaeffer's oil does an outstanding job of cleaning up an engine. I plugged up a Amsoil BP100 2 micron bypass filter in 5,000 miles with all the gunk that I had in my engine from the previous 200,000 miles of "supposed" TOP quality oils. Maybe what happened to you could have happened to me if I did not have 2 filters and monitor stuff like that. I knew it would clean, so I checked filters to make sure they were getting warm, when a filter plugs, it wont let any oil into it, so it stays much cooler than before. So if you plugged up the filter you had, it may have been the source of your issues. I dont know, did you run an analysis to see if the lubricant failed?

If he's only running one filter and it plugs wouldn't his oil pressure be higher (he said he noticed a drop) as the oil "deadheads"? I know there used to be a bypass in the old SBC's and BBC's and assume there is one in the Duramax but it still takes an increased pressure to bypass it and keep it bypassed...

I could care less about all the BS of which oil is best, just a question I have regarding the design of the Duramax (if it utilizes a bypass) and what happens as filters plug up to the point of reaching bypass or even slightly before. My hypothesis is higher oil pressures, but have never done the testing to prove/disprove.

In relation to the Allison, if the filter plugs I'm assuming lack of fluid flow would drive temps up VERY fast as there would be minimum heat transfer, but knowing how touchy it is, I would think shift quality would also get VERY erratic before such temps were reached due to lack of fluid flow....

Thoughts?
 

gundog

New member
Mar 16, 2012
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Thanks guys, my head hurts. Got my trailer out of the shop and pulled it home. trans temp 165 freeway driving. Guess I just never watehed the temp around town. I'll stick with the crappy transynd and get one of Mike L. trans coolers.
 

MACKIN

Smell My Finger...
Aug 14, 2006
3,948
1
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Connecticut
Thanks guys, my head hurts. Got my trailer out of the shop and pulled it home. trans temp 165 freeway driving. Guess I just never watehed the temp around town. I'll stick with the crappy transynd and get one of Mike L. trans coolers.

There is nothing crappy about Transynd. There may be some validity (super diesel) in fluid type and tempature, as it stands right now a better cooler should be on your to do list.
 

DBUSHLB7

Team DMAX
Mar 9, 2012
2,789
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Albuquerque, NM
It's on my list as well. Still have not heard back from Mike. Two voicemails, three calls to shop and one to cell phone all during business hours. Hopefully for him he is busy and I understand if so. Maybe he does not want an ATS customer to have his cooler? Hopefully he still wants to sell me a cooler. Brian referred me to Renodmax's idea with the Summit cooler and if I don't hear from Mike I guess I'll just go that route. The highest temp ive seen in five years with my tranny is 205 on a 98 degree day pulling my utility trailer through stop and go in the city. Track temps never pass 175-180 or so no issues there.
 

MACKIN

Smell My Finger...
Aug 14, 2006
3,948
1
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Connecticut
I don't know anything about this clogged filter but I'll tell you that if you're clogging a filter you aren't changing it as you should with a extended drain program. Either that or you have ran some pretty shitty oil previusly that left beyond your imagination soot in your engine then went to a high detergent oil and a fine micron filter.

Basically soot is the biggest contaminate in our oil more so if it's tuned for high output but in a stock ECM calibration that would be some low detergent oil. Maybe he was running that 5w 30 Amsoil that people said was diesel compliant but not. More of a gasser motor oil!

Most I believe that do extended drains change their filter every 5k or so maybe he felt it wasn't necessary .

But even saying all that I was in belief that oil filters have a built in relief if they do clog? No?