I have personally done this (today) & it's a big improvement (on my car) so I'd like to pass it along.
When I got my LT4 almost 2 years ago I started with preventative maint. to make it perform as close to 100% new as I could. The 6 speed was a bit notchy/balky. I replaced the clutch slave & that helped some.
Then I replaced the gear oil with GM spec 5w-50 (dino) and that helped a little more but after a few thousand miles it was back to where it was with just the slave replaced.
Today I put Castrol TWS in and wow, it's very smooth. zfdoc turned me onto this and it now drops into gear very easy. I would not have thought a different blend (plus it's synthetic) would make so much difference.
If your 6 speed is like mine was, first verify the clutch slave/master. If it's got 50k plus miles and you believe in PM like I do then replace them.
Then treat your Vette to the Castrol TWS tranny fluid (it's the engine oil for BMW M5). You'll like it.
When I got my LT4 almost 2 years ago I started with preventative maint. to make it perform as close to 100% new as I could. The 6 speed was a bit notchy/balky. I replaced the clutch slave & that helped some.
Then I replaced the gear oil with GM spec 5w-50 (dino) and that helped a little more but after a few thousand miles it was back to where it was with just the slave replaced.
Today I put Castrol TWS in and wow, it's very smooth. zfdoc turned me onto this and it now drops into gear very easy. I would not have thought a different blend (plus it's synthetic) would make so much difference.
If your 6 speed is like mine was, first verify the clutch slave/master. If it's got 50k plus miles and you believe in PM like I do then replace them.
Then treat your Vette to the Castrol TWS tranny fluid (it's the engine oil for BMW M5). You'll like it.