- Joined
- Sep 22, 2007
- Messages
- 13,886
- City
- Michigan
- Vehicle Year
- 1987
- Engine
- 2.9 V6
- Transmission
- Manual
- My credo
- A legend to the old man, a hero to the child...
I run valvoline semi synthetic and havent had an issue. I run the maxlife with a FL1A filter in both my 2.9 and 460.yeah now that you mention it, I've heard about leaks from synth
should I try to find totally non-synth in a non-Motorcraft brand?
Id run either semi syn or conventional.