What fluids are you using?

[sharrig]

Hi, As the owner of a 1982 C3, I need to change the transmission fluid and rear gear oil.
Could you please advise on the following with regards to the more common names available.
1 What transmission oil are you using
2 What Gear Oil are you using, and are you buying the additive separately or does the Gear Oil have the additive included
Thank you for your help.
Regards Steven

 

[johng]

I use Dexron 3 transmission oil (mine is an automatic)
Most people add the GM additive to their diff oil, I used Castrol TRANSMAX Limited Slip Z 85W-90 85W90 which doesn't need an additive and has been fine for the past 4 years.

 

[sharrig]

Thank you for your prompt reply. I will check these oils on line.

 

[Chuffer]

Use Dexron 3 in my 1980 auto trans too . Also use the recommended GM additive in the LSD .