BNG
Well-known member
Two things, use a synthetic oil like AmsOil or Royal Purple, and you'll do far less damage even on cold starts. As said earlier, if the oil pressure is up and it's getting to the top end your golden. Second, the auto tranny warms better in gear. Your better off letting your car idle while cleaning windows and then driving slowly out of the neighborhood or down the road a few miles than idling in the driveway forever.
Diesels warm up under load so a brief warming and then a slow drive is better. Those clowns who start their pickups to let them run for ten minutes in the driveway crack me up. And yes, letting the turbo cool will help extend the life. Shutting it down hot leaves to much heat in it and the oil gets burnt. It will act as an abrasive. Kano labs sells Kreen for cleaning up carbon deposits and it works. I have also used ATF mixed in the oil for diesels to clean them up just before an oil change.
Diesels warm up under load so a brief warming and then a slow drive is better. Those clowns who start their pickups to let them run for ten minutes in the driveway crack me up. And yes, letting the turbo cool will help extend the life. Shutting it down hot leaves to much heat in it and the oil gets burnt. It will act as an abrasive. Kano labs sells Kreen for cleaning up carbon deposits and it works. I have also used ATF mixed in the oil for diesels to clean them up just before an oil change.