12/30/2023 0 Comments Redline mtl 90Bur MTL works better, regardless of weight. Several here, including myself, have used motor oil in X transaxles, often in lower viscosities than MTL. It solved the problem so well that I've been a Redline fan ever since. I found MTL around 20 years ago while trying to solve some crunchy gear engagement problems in a BMW. Been years since I've looked, but there used to be some technical info on their site that explained in some detail. It's not a function of viscosity- Redline uses special friction modifiers to cause the synchros to mesh more smoothly. Maybe I could do a 50/50 mix of MTL and MT90, which would give me a viscocity more or less in the middle. just wondering out loud as to why Redline has earned such a fine reputation). not trying to justify a switch away from the use of Redline here. Under this hypothesis, any given brand of oil would allow the tranny to work just the same as another, so long as the viscocity of both fluids are kept equal. Thinking about this one a bit more, could it be that those folks who claim that their tranny shifts "better" when filled with fresh MTL Redline fluid are actually reacting more to the use of the lighter weight oil, rather than some mystical chemical properties that Redline offers and that other oil brands do not? MT90, looks like the MT90 better meets the 90 weight spec, so there you go! There the OEM factory spec calls for SAE 90 weight lubricant.īased upon the weights of the MTL vs. OK, I just went out to the garage and pulled my old blue binder factory service manual down off the shelf.
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