Not certain but car is blowing white smoke when being warmed up each morning. Worse after recent oil change. Can smell the oil! Never owned a turbo but pretty sure rings are shot or, maybe turbo needs to be rebuilt, cause car dosen't smoke entire duration of the drive. Anyways I figure I'll have a comp. test done if comp. is good then I'll have turbo looked at, or order a rebuilt!! If Comp. is bad I'll order a rebuilt engine with a warrenty in the spring or whenever the car dies!!!