Synthetic oil in manual trans
07 Colorado. The owners manual calls for 75W90 synthetic in the diff, 89021-806(manual trans fluid) in the trans. Am pretty sure the trans fluid is not synthetic. What about using synthetic oil inthe trans.
synthetic oil is more money. It breaks down at a much higher temperature. It will usualy extend the change interval.
I use synthetic oil in everything . I think its worth the extra money.
Kendall
I use synthetic oil in everything . I think its worth the extra money.
Kendall
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