Tune Up Questions

[Powashiftin]

Hey guys, im doing a tune up tomorrow- What kind of oil should i use for my differential? I think the differential has oil, correct? How about transmission oil? I want to change all fluids - What are your recommendations?

[leper421]

the diff uses the same gear oil as a manual transmission. I have 75w-80 in mine.

[Powashiftin]

So i should use 75w-80 in both ... Cool thanks. Does the transmission feel smooth with that? What brand should i buy

[PapaSmurf2k3]

The FAQ says that Redline 75w 140 (i think... you should double check) is the best for the transmission and 80w 140 (i think) is the best for the diff. i thought this sounded a bit odd at first, but they do make the stuff. Its a bit more expensive than regular gear oil (because its a synthetic) but apparently it works much better. Good Luck.

[Powashiftin]

I forgot to mention that this is for an S14 without LSD - Does it matter?

[leper421]

nope