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04 /24/ 24, 11:00pm

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Subject: TRANSMISSION FLUID Author: KEN [ Next Thread | Previous Thread | Next Message | Previous Message ] Date Posted: 02/ 27/ 07, 2:51pm Well here is another question for you all, I have a 84 pt35 with the mt645 if that sounds right allison automatic, the service manuel says it takes dexron 11 fluid, the logs I found says that it was serviced twice using 15/40 motor oil, then the last time says they went to synthetic but didnt say what type, ive talked to a couple of truck drivers and they say yes you can run all those fluids in it, but from my understanding of automatic transmissions that does not sound right. they say running the motor oil helps it run cooler, same with the synthetic, but what about the clutch plates? would like some input from some of you that run pushers with this trans tell me your thoughts, my first thought would be to run plain old dexron11 then maybe a friction modifier like BG trans cond. my exsperiance with synthetic is its hard on the clutch packs as would be the motor oil, i would think. whats your guys input? thanks ken [ Next Thread | Previous Thread | Next Message | Previous Message ]

Replies:

[> Subject: Re: TRANSMISSION FLUID Author: Bob Dilks [ Edit | View ] Date Posted: 03/ 1/ 07, 8:12am If your transmission fluid has been replaced with synthetic fluid it might be TranSynd ($28/ gallon)as recommended by Allison. Stick to the synthetic because it can take more heat and should run slightly cooler. [ Post a Reply to This Message ]

[> [> Subject: Re: TRANSMISSION FLUID Author: Ken [ Edit | View ] Date Posted: 03/ 21/ 07, 10:49am well after researching it more Ive come to the conclusion that it was last changed using synthetic, and according to allison that is what they recommend as well. thanks for your help on this one [ Post a Reply to This Message ]