You don't need to drive fast, you need to get it up to and keep it at operating coolant temp. I get on the freeway and run it in 6th or 7th gear to run at 2000 or more RPM. But like Boost said, it may be too late.Hello everyone,
Has anyone reached 100% exhaust ? It’s also -28 degrees here. Is it safe to drive it fast to clean it out at this point? TIA