When someone states a turbo "spins freely", do they mean they can give it a twist and it'll keep spinning or just turn with no contact with the housing? I will be needing to extend the life of my stock turbos one more summer, once mine were off, there was a small amount of oil near the propellers and a crusty film in the intake pipes. Never smoked or anything while driving. They don't have much "play" either when I grab them and move back and forth. Do you think it'll be safe to extend another summer with no negative impact on a rebuilt motor? Thanks a ton.