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    Switching to synthetic

    All lubricants have to have an additive package that addresses seals. Here is a little piece on that subject: Elastomer Compatibility Elastomer/seal compability of a lubricang fluid is extremely important in ensuring proper equipment operation. Common problems that can result from...
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    Switching to synthetic

    Good discussion. All points are things to consider. Agreed that switching will not cause harm but may uncover some unseen problems. The higher the miles on the engines, the increases change of things you may see. I've had vehicles that don't use a drop and I've had vehicles that use a qt as...
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    new from central Iowa

    Welcome from a bit north of you.
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    delo 400 5-40 synthetic

    Agreed.
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    Amsoil in Trans & Transfer

    I would agree. Since this is recommended "outside" OEM specs, I'd stick with what has been tested.
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    LMM: Fuel Additive Question

    They should be ok....I would think they might put this on the labeling but maybe everyone doesn't??
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    Question: Who on here has been unhappy with results using Amsoil?

    I've never heard that before. Don't know what you're talking about:thumb: It's a good dialog though. Helps me to know what NOT to say and do:)
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    Amsoil dealers

    What's this?? :) Very active thread. You all make good arguments as the things you mention do happen out there. Other dealers have sent me "overboard" as well. There are still a few good ones out there. As a sponsor on this forum, you can tell my involvement is limited, as it is on others...
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    Regeneration

    I don't think they did. I was at a presentation for all 3 new 2011's and GM was the only one they mentioned. The Allison on the 2011 doesn't have the PTO option any more and Ford installed one. Even have fittings on the front fender.
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    Regeneration

    It is in cylinder. The 2011 duramax went with the 9th injector in the exhaust....bravo GM!! The other two OEM's stuck with in cylinder for 2011. I anticipate huge sales for GM.
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    Does the rear diff use a friction modifier?

    You don't need it in most cases. ONce in a great while someone might get some chatter. The amsoil severe gear has the additive already in it so no worries.
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    Engine Oil

    I have no experience with RP, but if I had to pick one that I've seen the most negative comments on, it is RP. Seems there are opioions on RP in both directions. Seems to be loved or hated, not much in between.
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    Wix Fuel Filter part# 33910

    I believe the 33910 is the old one. The newer plastic version is the 33960xe. I think that's right.
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    power steering fluid....

    There is a difference between the ATF and PSF. These trucks take the PSF. Many of the newer Dodges use ATF. They shouldn't be mixed. We do have a synthetic PSF as an option. PSF
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    Allison 5sp: Transmission oil change

    Many people just do a pan drain(about 8qt) and refill. Put on a new spin on. The fluids should mix fine. This is the easy way to gradually change out the fluid. The other is to flush. I tried it myself once and probably won't again. Not a one person job. I went to AAMCO with my fluid and...
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    Wix Allison Spin On

    Good filter. Should have no problems.
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    Question: To heavy of oil?

    40 is the recommended. Only other thing that is thinker may be a 20/50, but I don't think there is any rated for a diesel.
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    best flowing oil filter

    The EaO52 is actually 15 micron 98% absolute. The bypass filters are 2 micron. Good filters.
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    Does diesel fuel gel these days

    Good to know what fuel you are getting. Try and stick with the same station as much as possible once you know what you are getting. Some may keep #2 fuel all year, many switch to a blend in the winter months. #2 fuel can actually start to crystallize at as high as 40F, but usually more of a...
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    www.LubricationSpecialist.com

    Yikes, not good. Let's hope that wasn't the case. Identity left is a pain in the A__!