This sounds like a silly question. But I was wondering....
Why does varnish get baked onto the valve cover, but the valvetrain (cam, rocker arms, valve springs, etc) doesn't have any crud baked on like the valve cover does ?
Auto-RX treatment will be done in about 3 months.
Why does varnish get baked onto the valve cover, but the valvetrain (cam, rocker arms, valve springs, etc) doesn't have any crud baked on like the valve cover does ?
Auto-RX treatment will be done in about 3 months.