Quote:
Originally Posted by The Specialist
Yes, both my Grand Sport Vette and this 1LE are cold manual trans fussy.
I looked through my manual and it doesn't show exactly what is used in the manual trans. Only the GM part number.
# 88861800.
Is it a common 80\90 gear lube?
I'd like to switch to Mobil1 full synthetic if possible.
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GM #88861800 is a modified DEX III ATF. All TR6060's use a variation of an ATF
http://www.tremec.com/anexos/TREMEC_TR-6060_1017.pdf. Redline D4 works well for some. I had better luck with the cold shifts using Amsoil Torque Drive. However I still get crunchy/notchy shifts from 1-2 & 2-3 most times, even when warmed up, unless i'm really getting on it. Although I did buy my SS used with just under 24k in 2018 and I don't know how the previous owner drove it.