- Joined
- Oct 24, 2023
- Messages
- 88
Hey guys. Just put some Quaker state 5w40 euro in my 94 ls400. I switched from 5w30 just because I wanted to and I run my engine hard, and it’s okay for my application. I was comfy running 6k oci with regular qs full syn. Anyone know how long you can run this euro formula for? I don’t know much about euro formulas. City driving. Thanks