- Aug 13, 2006
- 185
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I bought a Super HD T-5 from Summit last summer which says Tremec on the body of it, and there was a tag on it that said "this transmission must be filled with ATF". I filled it with ATF synthetic Castrol. It seems to be ok, and shifts good though a little noisy at times. The reason I'm asking is a friend told me I was crazy for using automatic trans fluid in a 5-speed, and said I should use the manual trans fluid. Any one know for sure which I should be using? Thanks guys, just want to make sure I'm doing things correctly.
Thanks in advance....
Thanks in advance....