[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
86 CGT Transmission Oil
Hi fellow Qlisters,
I recently replaced the transmission oil in my 1986 Coupe GT with
Valvoline Dura-Blend (synthetic blend) 80W90 which has a GL5 rating, but
is recommended for GL4/GL5 applications (according to their homepage). My
Bently specifies 80W90 oil, GL4. I don't know much about gear oil
ratings, etc. but it seems to me that I picked the right stuff.
The car shifts fine when warm, but it now shifts terrible when cold.
There is always some grinding between gears unless I shift really slowly.
I don't remember this happening before I changed the transmission oil.
Any suggestions? If it continues, I plan to switch to Redline oil since
it is spoken of very highly. Which type should I use?