In Reply to: Re: M3-Oil Consumption posted by Bob ///M3 on February 07, 2000 at 15:57:03:
What do you mean by "pleased with syn oil?" The cost is about 3.5X more. I guess the real purpose of the syn oil over dino is that you won't change it so much which government officials think this must mean less waste oil in the environment. You didn't say, but I guess you leave it in the engine more than the customary 3K mile dino-change so maybe cost-wise they equal out. My understanding is with the syn oil which may flow better, the engine could gain maybe 0.5-1.0 HP, but the best reason is in the north for easier starting (over dino oil engines) on very cold mornings. My '99M3 came with the dino, and BMWNA says stay with it, but I guess if I lived in the north I may be tempted to change to syn. Can you provide some more (+)s for using syn???
: I changed my oil at 2,500 miles to the BMW labeled 5W40 synthetic. I have been pleased with the synthetic oil.
: Bob ///M3
: : Collective:
: : Had my M3 for about 3 months now. Was traffic racing a Carrera Last night and came home.
: : Got some valve clatter.
: : Proceeded to check the oil. Hmmmmm...a little low.
: : Wound up filling it with 2.25 quarts of Castrol-Synthetic. (Yes, I'll switch to Redline when it comes time to do the full oil change)
: : Since I assume the dealer did the last oil change and might not have compensated for the filter or used like a 5-30 oil, how much oil does the M3 use between changes?
: : Don't say none as my Dad's Boxster has used close to 4 quarts of oil between it's 24k mile oil changes.
: : Thanks!
: : -Eeek36