quote:I missed that when I searched the UOA section. Pretty impressive. I can get M1 at Costco for under $4 a quart, so that may work out. Prior to switching to the synthetic, would an AutoRX do me any good? As far as I can tell, I have no oil related problems.
Originally posted by Cary: It depends on how much your time is worth. Personally, I would use Mobil 1 and change it every 7500-10,000 miles. Save me 2 oil changes including the hassle and time involved in getting the oil and filter, or the cost and time of going to the dealer. Check out this UOA showing the M1 going 10,000 miles in this engine with plenty of TBN left. http://theoildrop.server101.com/cgi/ultimatebb.cgi?ubb=get_topic;f=3;t=000858#000000 Cary