6 Speed Fluid Change

[Tommy L]

Can anyone tell me what to type of fluid to fill my 6 speed with ?.
I am wondering weather to use Mobil 1 10w30 or GMs gear lube, also what size allen key fits the drain plug ?.

IF AT FIRST YOU DON'T SUCCEED, SKYDIVING IS NOT FOR YOU.

[UE19]

Red Line MTF in my tranny.

17mm is the size.

L8R

[Vette96CE]

Tommy L,

I just changed my tranny fluid yesterday. I just looked in my owners manual and it quoted the same fluid that C5d is saying.
I didn't think it would be in the owners manual, but it was.
You learn something new everyday.
Good luck,
Vette96CE
P.S. U.E.19 is also correct in saying 17mm is the size.

[Tommy L]

Does the redline fluid have any advantage over the Mobil one 10w30 ? (both being synthetic). Is gear oil better than the 5w30 as sugested by GM.

ALWAYS REMEMBER YOUR UNIQUE, JUST LIKE EVERYONE ELSE.

[alame]

I just had mine done recently and went with the GM fluid and a synthetic in the rear end.

[UE19]

[quote]Originally posted by Tommy L
[b]Does the redline fluid have any advantage over the Mobil one 10w30 ? (both being synthetic). Is gear oil better than the 5w30 as sugested by GM.

I don't know. Start alot of flames here with the oil subject. I use Redline in my bike (99GSXR750) Did wonders there as far as smooth running engine and shifting gears. So I use it in my Vette. Turned out to do the same. I like it. So I guess oil is like everything else. "Pref"

[Tommy L]

This car is not modified in any way and only has 3,100 miles on it so maybe I should just fill the trans with the GM factory fluid.