Quote Originally Posted by flash527 View Post
ive always ran full synthetic, but keep this in mind... once you put synthetic in your car, you can NEVER go back to regular oil.
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.