Quote Originally Posted by h0wl0ngcanitbe View Post
Ok good to know, so should I just switch to Castrol Sythetic or pony up for the RP? I dont mind the added cost I just want to know if its actual making a difference?
For the amount of miles you are driving, I would go with Amsoil Synthetic. It lasts up to 25,000 miles and is a very high quality synthetic.

AMSOIL - Signature Series 100% Synthetic 10W-30 Motor Oil (ATM)