PowerStrokeNation : Ford Powerstroke Diesel Forum - View Single Post - friction modifier in differential?
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post #4 of (permalink) Old 01-09-2011, 03:56 PM
KB3MMX
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Thumbs up Re: friction modifier in differential?

Quote:
Originally Posted by Sequential6.4L View Post
I got new mag-hytec diff pans for my truck and Im changing the differential fluid. The manual says 75w-140 for the rear and I forget what it is for the front but it doesn't say anything about using any kind of friction additive. Do I need to use any? if so how much? Im gonna use Valvoline fluid or maybe amsoil if I decide to drop the extra cash to buy it and go pick it up. thanks for the help
AMSOIL Severe Gear 75w-140 already has the additive in it, which will work great in both diffs.


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