Manual Transmission Fluid

Manual Transmission Fluid

5-speed with Low Gear (RPO MW3) GM Goodwrench Synthetic Manual Transmission Fluid (GM P/N 12346190 - 1 qt) or the equivalent SAE 75W-85 GL-4 gear oil

5-speed without Low Gear (RPO MG5) Synchromesh Transmission Fluid (GM P/N 12345349) or equivalent

6-speed (RPO ML6) TranSynd (tm) Synthetic Transmission Fluid (GM P/N 12378515)