seanie
Well-known member
Anyone recommend a running in procedure and a running in oil for ej20.
I have always driven handy for 1000 miles gradually raising engine revs as mileage increases and used a mineral oil like 15w40 and then switch to synthetic/ semi synthetic after but that was on older engines. i have got conflicting advice some say break in easy others hard. any experience with good or bad results??
I have always driven handy for 1000 miles gradually raising engine revs as mileage increases and used a mineral oil like 15w40 and then switch to synthetic/ semi synthetic after but that was on older engines. i have got conflicting advice some say break in easy others hard. any experience with good or bad results??