In Reply to: Re: M3-Oil Consumption posted by johnW on February 07, 2000 at 16:53:34:
Pleased with the synthetic? Okay, I quess I need to explain that statement. For peace of mind I prefer the synthetic oil. It flows faster in cold weather at crank-up. It has better high temperature capabilities, etc. I just simply like the thought of having synthetic oil in my car in lieu of dino oil.
Cost is not a factor for me using the synthetic oil. I really don't care how much it cost in comparison. I also enjoy working on my car so the time spent changing oil is actually fun to me therefore I don't change oil on schedule but I change it quite often. I changed the oil the first time at about 2,500 miles and again at about 4,750 miles both times using the BMW labeled synthetic oil. Presently the M3 has about 5,000 miles on it and I will change the oil one more time before the dealer changes it at 9K or 10K miles. After that, I will probably change the oil once or maybe twice between the dealer changes.
I felt like the rings were seated at the time I first changed over to synthetic and was not concerned about the myth that you shouldn't change to synthetic oil until much after I did (or not at all). I think the rings would seat just fine if it was filled with synthetic from the factory.
I also own a 2000 model 328i which comes filled with synthetic. I also use synthetic in a '97 528i. I have no problems using synthetic oil.
So, yes I am pleased with the synthetic oil. Would I be pleased if I were using dino oil? Yes, I'm sure I would, however I personally think the synthetic is a better oil, so like I said in my opening statement; "for peace of mind I prefer the synthetic oil".
I hope this explains what I said a little better.
: 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???