Quote Originally Posted by LSXHP View Post
This is absolute bs if I've ever read it...you are very misinformed. If you have a higher mileage motor that leaks some oild, you don't want to switch to synthetic or it can leak worse. Other then that you can switch back and fourth whenever you want without any issues.
Ive been told by two different GM certified technicians that switching back to a regular oil after using synthetic is a terrible idea. I'm not saying those technicians are right or wrong. I'm just saying, would you take the chance. If you want synthetic run synthetic, and if you want a standard oil, run a standard oil. Why would you ever want to change back in forth in the first place?