Reply To: transmission fluid – TigersEast AlpinesEast

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June 11, 2005 at 3:30 am #59363

Tom and Joanne Ehrhart

Participant

I agree with 30 HD oil…………. But 80WT, NO WAY JOSE. STOP-DANGER DO NOT DO IT. The viscosity of 80 WT inhibits the free spinning of gears creating to much of a drag for the syncros to overcome. Sure the driver can “jam” a gear but it overstresses the shift forks and syncros causing premature wear or even breakage. In cold weather shifting gears may be near impossible. I just went through this exercise with an Alpine this spring. Ask, Anthony DiBasttia what it is like.

BTW. The max viscosity you can use with an OD is 40WT. Higher viscosity prevents the sun gears from getting adequate lubrication. The end result is gears turning blue from excess heat and self destruction.