gorganl2000
Lifer
but is it good to run-in an engine??
..all i can say is i know of 2 5Eftes and 3 4eftes been run it with it using the usual oil change schedules.......and no issues ever....these engines are now 2 - 8 years old
but if others prefer to use mineral and thinner oil, then they should,,,for piece of mind....this is just one of those things like "which way to run in"....there is no one solution