Originally Posted By: NHRATA
Thinking of switching my 80000 mile LS1 over to Valvoline synpower this year. The car currently has zero leaks or consumption issues. Given the age and the mileage do you guys think I should use Valvoline synpower with maxlife technology 5W30, or just the regular Valvoline synpower 5W30?
I've used SPwML in my Honda with 165000 for the past two changes and it all seems good. My car had no leaks or consumption issues either but I figured it couldn't hurt. It has all the same specs and approvals that new cars require so any additional additives for leakage or seal swelling shouldn't be an issue. Says right on the bottle that it's fine for newer cars as well as those over 75,000. Must be true, right....?