87RangerXLTct
Member
- Joined
- Aug 20, 2009
- Messages
- 99
- Reaction score
- 5
- Points
- 8
- Vehicle Year
- 1987
- Make / Model
- Ford
- Transmission
- Manual
Having a hard time finding a gl4 spec in 80w, napa sells a 85w-90 gl4 but might be a little thick? I can also find valvoline 80w-90 but it's gl4,gl5 spec and says limited slip on the bottle? What are you folks running in fm145,fm146 manual transmissions?