tranny fluid
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tranny fluid
my ? is for everybody that has used or currently uses bg syncroshift II in their tranny. i did a search and saw that it is about 50/50 for likes and don't likes. i would like to get other opinions before i change the fluid. TIA Jeff
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Here is the response to the inquiry I sent to Castrol USA about where to get Castrol TAF-X in the USA: "Castrol TAF-X 75W-90 GL-4 gear oil is made in the U.K. and sold only in Europe. However, the equivalent in the U.S. is Syntorq LT. Having said that, Syntorq LT SAE 75W-85, API GL-4 is a premium high performance, synthetic gear lubricant for synchronized manual transmissions. The all new "clean slate" approach enables Syntorq LT to provide consistent performance and durability under the most severe operating conditions due to its unique polymer free formula. It has been designed primarily as a problem solving gear lubricant for manual transmissions to provide reduced gearshift effort at low temperatures. Syntorq LT is available through General Motors (Part #12346190) and Chrysler (Part #4637579) dealerships. Please contact your local dealership." Aside from the compatability with yellow metals, the gear oil has to allow the synchronizers to work. this require two flat or conical surfaces to reach the same speed as quickly as possible without spinning and heating up.
I've seen many synchronizers that have burned blue because the additive package wouldn't let go and let the discs spin. This means that depending on the materials used, the angles of contact, depth of contact, and type of drain grooves, different oils can be necesary. I try to stay with the GL-4 product whenever the manufacturer calls for it so as to be sure that they synchronize
I've seen many synchronizers that have burned blue because the additive package wouldn't let go and let the discs spin. This means that depending on the materials used, the angles of contact, depth of contact, and type of drain grooves, different oils can be necesary. I try to stay with the GL-4 product whenever the manufacturer calls for it so as to be sure that they synchronize
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i just bought MT-90 for the tranny and mobil 1 tc and rear diff fluid. i couldnt find any mobil 1 gl4 for sale so i bought redline. i thnk red line is a high grade of oil any way.