I just had the dealer put in Mobil1 in my 2000 CSVT. I don't know if there are enough benefits to continue using Mobil1 if I have my oil changed every 2,500 miles, so I was considering switching back to conventional oil next oil change. I have heard mixed responses from other messages on this site and on Mobil's site about switching back. Has anyone done this, and does it cause any problems? Is it really worth using synthetics if I change my oil this often?
