Fuel Cooler

Bread

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Jun 7, 2011
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You haven't been searching long enough to find his data. It is publically posted..but this is not nearly the first time the topic has been covered.

Finally had a chance to look around some more. I did find a huge thread on DP, which explains why Mike L is defending this so fiercely.

Los Lobos pretty much sums it up in post 510: http://www.dieselplace.com/forum/3-...3-new-2-4-mpg-fuel-cooler-51.html#post2287530

And this one where JPR5690 in post #8, six pack in #11 http://www.dieselplace.com/forum/3-...missions-upgrades/200704-fuel-cooler-mod.html

All those threads are closed now. Perhaps Mike L's BS claims of a 2-4 mpg increase was becoming transparent. Yea the fuel temp will change and we can argue about how much, and what affects that change. But the bottom line is that fuel cooling on these trucks hasn't been proven to do anything for performance or economy. The factory cooler could be there to keep the plastic sending unit from melting for all we know :roflmao:
 

Utahski

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Oct 20, 2008
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Here is a picture of my 26" Derale dual pass cooler mounted after my factory cooler. One more benefit to cool fuel is longer fuel filter life. At 140*+ the asphaltenes in the fuel start to drop out and this is what turns your filters black. Keeping your fuel temps below 140* will give you many benefits.

I like how that thing isn't bulky and they come in different lengths. Does it work well enough to use instead of the conventional radiator type?
 

OregonDMAX

NOT IN OREGON, NO DURAMAX
Apr 28, 2013
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Finally had a chance to look around some more. I did find a huge thread on DP, which explains why Mike L is defending this so fiercely.

Los Lobos pretty much sums it up in post 510: http://www.dieselplace.com/forum/3-...3-new-2-4-mpg-fuel-cooler-51.html#post2287530

And this one where JPR5690 in post #8, six pack in #11 http://www.dieselplace.com/forum/3-...missions-upgrades/200704-fuel-cooler-mod.html

All those threads are closed now. Perhaps Mike L's BS claims of a 2-4 mpg increase was becoming transparent. Yea the fuel temp will change and we can argue about how much, and what affects that change. But the bottom line is that fuel cooling on these trucks hasn't been proven to do anything for performance or economy. The factory cooler could be there to keep the plastic sending unit from melting for all we know :roflmao:


The first link the post proved there was a MPG increase...

the second link had no data whatsoever to support there claim, not to mention he was talking about using a fan on a stock cooler, if the cooler is indeed restrictive and causing heat then the fan isnt enough to make a difference.

All of this doesnt prove enough, weather, temperature, altitude, driving condotions, driving style and traffic. As well as cooler type, dimensions, inlet/outlet size, thickness of cooler, type of fan, size, cfm, and mounting location all play a huge roll and you cant just take a few peoples claims and call that good data. So why are you coming in here just to try and pick a fight with MikeL
 

1pieceatatime

Member
Mar 30, 2014
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The first link the post proved there was a MPG increase...

the second link had no data whatsoever to support there claim, not to mention he was talking about using a fan on a stock cooler, if the cooler is indeed restrictive and causing heat then the fan isnt enough to make a difference.

All of this doesnt prove enough, weather, temperature, altitude, driving condotions, driving style and traffic. As well as cooler type, dimensions, inlet/outlet size, thickness of cooler, type of fan, size, cfm, and mounting location all play a huge roll and you cant just take a few peoples claims and call that good data. So why are you coming in here just to try and pick a fight with MikeL


Post# 510 he cites is referencing an lb7 5 speed with 4.10s. Based on my experience with my LB7 with 4.10s, I dunno how in the fruck he was getting that kind of mileage with half city and half freeway @ 80 miles an hour.
 

Mike L.

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Aug 12, 2006
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Finally had a chance to look around some more. I did find a huge thread on DP, which explains why Mike L is defending this so fiercely.

Los Lobos pretty much sums it up in post 510: http://www.dieselplace.com/forum/3-...3-new-2-4-mpg-fuel-cooler-51.html#post2287530

And this one where JPR5690 in post #8, six pack in #11 http://www.dieselplace.com/forum/3-...missions-upgrades/200704-fuel-cooler-mod.html

All those threads are closed now. Perhaps Mike L's BS claims of a 2-4 mpg increase was becoming transparent. Yea the fuel temp will change and we can argue about how much, and what affects that change. But the bottom line is that fuel cooling on these trucks hasn't been proven to do anything for performance or economy. The factory cooler could be there to keep the plastic sending unit from melting for all we know :roflmao:

You seem to be having fun here without contributing anything but insults. Maybe you need to take a break from this. If you don't; I will give you one. :D
 

S Phinney

Active member
Aug 15, 2008
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Finally had a chance to look around some more. I did find a huge thread on DP, which explains why Mike L is defending this so fiercely.

Los Lobos pretty much sums it up in post 510: http://www.dieselplace.com/forum/3-...3-new-2-4-mpg-fuel-cooler-51.html#post2287530

And this one where JPR5690 in post #8, six pack in #11 http://www.dieselplace.com/forum/3-...missions-upgrades/200704-fuel-cooler-mod.html

All those threads are closed now. Perhaps Mike L's BS claims of a 2-4 mpg increase was becoming transparent. Yea the fuel temp will change and we can argue about how much, and what affects that change. But the bottom line is that fuel cooling on these trucks hasn't been proven to do anything for performance or economy. The factory cooler could be there to keep the plastic sending unit from melting for all we know
You can bet your ass that the cooler was put on these trucks because it was needed. It wasn't to keep plastic from melting. It us proven time and again that we can improve almost every aspect of these trucks as well hence we can measure those improvements. Why argue a b out what Mike finds or anyone else from that matter? Each persons find I go do not necessarily make it the gospel for all.
 

Bread

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Jun 7, 2011
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The first link the post proved there was a MPG increase...

Wasn't anywhere near 2-4 mpg though was it? I thought those results clearly spoke for themselves.

you cant just take a few peoples claims and call that good data. So why are you coming in here just to try and pick a fight with MikeL

Absolutely. I don't take any single piece of info at face value but rather read and read until I gain a bigger picture at which point I can make my own conclusions. I'm not here to pick a fight with anybody. I wanted to address what I see as a glaring piece of misinformation, and provide some of my own information in which I'm basing my ideas upon. But apparently, some folks take contradictory information as a personal attack.

You seem to be having fun here without contributing anything but insults. Maybe you need to take a break from this. If you don't; I will give you one. :D

Actually, I'm the only one that's contributed anything resembling data, or information with a basis on reason. Everything else I'm seeing here are baseless claims. Further, I haven't made a single personal attack towards anybody character. I am challenging your rhetoric however, which you still have not backed up. So when you get frustrated you not only name call, but move onto banning people so they can't contradict you?

You can bet your ass that the cooler was put on these trucks because it was needed. It wasn't to keep plastic from melting. It us proven time and again that we can improve almost every aspect of these trucks as well hence we can measure those improvements. Why argue a b out what Mike finds or anyone else from that matter? Each persons find I go do not necessarily make it the gospel for all.

I don't have an issue with sharing any kind of information. There's tons of BS on internet forums, which I normally wade through without issue. But when I came across Mike L's ridiculous comment about never running the fuel tank low because of his substantial research, and selling fuel coolers based on data he can't back up... I have an issue with that. None of the guys on here deserve to be ripped off when we're all here because we love our trucks.

Oh, and here's an interesting tidbit from a reputable company regarding another possible cause for fuel cooling. Emissions and plastic fuel tanks. I was half joking about melting the plastic fuel system (hence the smiley I posted following that comment), but it appears that there is some validity to that theory, lol: http://162.74.99.105/Automotive_Sys...Products/Fuel Coolers/fuelcooleroverview.aspx
 

juddski88

Freedom Diesel
Jul 1, 2008
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Chesterfield, Mass.
Wasn't anywhere near 2-4 mpg though was it? I thought those results clearly spoke for themselves.



Absolutely. I don't take any single piece of info at face value but rather read and read until I gain a bigger picture at which point I can make my own conclusions. I'm not here to pick a fight with anybody. I wanted to address what I see as a glaring piece of misinformation, and provide some of my own information in which I'm basing my ideas upon. But apparently, some folks take contradictory information as a personal attack.



Actually, I'm the only one that's contributed anything resembling data, or information with a basis on reason. Everything else I'm seeing here are baseless claims. Further, I haven't made a single personal attack towards anybody character. I am challenging your rhetoric however, which you still have not backed up. So when you get frustrated you not only name call, but move onto banning people so they can't contradict you?



I don't have an issue with sharing any kind of information. There's tons of BS on internet forums, which I normally wade through without issue. But when I came across Mike L's ridiculous comment about never running the fuel tank low because of his substantial research, and selling fuel coolers based on data he can't back up... I have an issue with that. None of the guys on here deserve to be ripped off when we're all here because we love our trucks.

Oh, and here's an interesting tidbit from a reputable company regarding another possible cause for fuel cooling. Emissions and plastic fuel tanks. I was half joking about melting the plastic fuel system (hence the smiley I posted following that comment), but it appears that there is some validity to that theory, lol: http://162.74.99.105/Automotive_Sys...Products/Fuel Coolers/fuelcooleroverview.aspx

I think it was back in that DieselPlace thread you just found that the other Cummins study was posted, but here's their Fuel System bulletin from 07.
http://www.sbmar.com/Maintenance/PDF/Cummins-Fuel_ServiceBulletin_Nov-07.pdf
 

ShopSpecialties

Active member
Jun 4, 2008
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Grass Range, Montana
Looks like Bread has a hard on for Mike L for whatever dumb reason.

Mike L has stated numerous times that he is not selling fuel coolers so therefore he is ripping off no one.

Cummins, Cat, Detroit, etc have all done extensive testing of the effects of fuel temps. Cooler fuel will give you many benefits to what extent will depend on a variety of things but every diesel engine will have a benefit of some sort. You just need to have at least a pea brain to figure it out.
 

Mike L.

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Every time this subject comes up we get idiots that want to drag down a good discussion because they know how to open their fuel tank and put it back together.
This same thing happened on DP and I ended it fast. Gave up the idea. Me and Carl ( Los Lobos ) never got a chance to say that a fuel cooler by itself will not give you mileage.
When your fuel temps get out of hand you will lose mileage; to what extent we don't know. It depends on the truck and situation. A fuel cooler will give you some or all the mileage you lost due to the overheating fuel issue.
As you guys can see, Bread is on a 2 week time off. I warned him. He didn't listen.
 

rgullett83

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Oct 27, 2008
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I have been thinking about the Setrab FP920M22I. I cant seem to find the flow ratings on the cooler. Whats your thoughts Mike?
 

Mike L.

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Damn forgot all about this. Added to the list of things I need to do.:thumb:

From the reports I have gotten as far as plumbing before the filter ( all of the reports were with the 6 speed factory trans cooler ), 120F seems to be the norm. This is good.
 

Mike L.

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Aug 12, 2006
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I have been thinking about the Setrab FP920M22I. I cant seem to find the flow ratings on the cooler. Whats your thoughts Mike?

I was using the Setrab 920 fan pack and found it excellent in reducing fuel temps. Setrab coolers are full flow with no restriction. Whatever cooler you choose; blow through it. If it is hard to blow through, don't use it. Make sure the tubes are not too small as it will retain heat. The old wives tail of fluid moving to fast through the system causing heat is pure bullshit.
I and many others have been testing heat exchanger flow for superchargers and we are finding that bigger ,faster pumps are bringing heat down.
 

rgullett83

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Oct 27, 2008
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I was using the Setrab 920 fan pack and found it excellent in reducing fuel temps. Setrab coolers are full flow with no restriction. Whatever cooler you choose; blow through it. If it is hard to blow through, don't use it. Make sure the tubes are not too small as it will retain heat. The old wives tail of fluid moving to fast through the system causing heat is pure bullshit.
I and many others have been testing heat exchanger flow for superchargers and we are finding that bigger ,faster pumps are bringing heat down.

Awesome thanks for the info:thumb: