Kendal synthetic motor oil

[nsmitchell]

Originally Posted by kimona

Is it true that once you change to synthetic oil, you can't go back to regular oil?

That's what the service guy at Goodyear told me.

A Total Myth.

Synthetic oils can be mixed with conventional oils. They are compatible with each other.

Engines running synthetic oils just have less wear and going back to conventional is fine. No damage done to the engine.