Quote:
Originally Posted by Tahoe_Hybrid
MPG loss at the expensive of a LONGER life transmission
gas is cheap you would only lose like 1% while extending the life of the transmission for many many extra miles
mine runs between 145F-165F winter/summer those are the ideal temps if you want the transmission to last 300,000-400,000 miles
once you get into the 190-210F range it will last about 115-150k miles
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I would say that's an unfair relation, your transmission has no torque converter which is where the vast majority of transmission heat is generated.