Re: Transmission fluid brand Issues
There could be many different reasons why certain mfg are not listed (didn't want to pay the licensing/testing fees imposed to be on the list), but Amsoil has NEVER been listed on any mfg spec sheet and has been proven on ALL forums to work great in ALL vehicles for ALL specs. Go figure!!
The original 236.10 fluid is thicker viscosity than the later fluids... it is very similar to the old Dexron-III. The 236.12 was a reduced viscosity version introduced for fuel economy reasons, and is similar to Dexron-VI. The 236.14 is another variation of the low-viscosity stuff (not sure exactly what the difference is).
For high performance applications, a thicker fluid is generally desired, not thinner. This is one case where you would probably NOT want to use a .12 or .14 fluid in the 722.6 tranny. For normal street use at stock power levels, sure, the new fluid spec is probably fine... might even see a slight increase in fuel economy.
Oh, and the original OEM marked M/B fluid were remarked Febi bottles!
Last edited by syfi; Mar 20, 2015 at 10:05 PM.