In Reply to: Re: The oil change debate posted by BudH on July 07, 2000 at 09:13:46:
At 15000 miles a lot of junk is floating around in your oil and your filters are probably not doing an adequate job of fitering out particles.
I personally would change my oil at about 5000 intervals. After all there is no harm in changing oil early but running to 15000 is certainly questionable.
You will never get a definitive answer on this issue but remember that sales and marketing people tend to promise the earth.
: I have heard that the Audi/VW use the break-in oil, but that BMW does not.
: I have also heard that the BMW oil-filter will not last 15K miles. It breaks down around 10K and then the filter particles will jam the smaller oil feeders to the VANOS, etc.
: There is a Service Bulletin for this that describes an updated/upgraded filter. See the arcives.
: I plan to change mine out at 5K - 7.5K regardless.
: '00 540iA
: Aspen Silver/Gray
: 2100 miles and lovin' it!
: : I had an Audi a few years ago and oil changes spawned quite a few debates on the message boards. A few things in particular stand out in my memory:
: : - The engineers know what they're doing, so don't mess with it - change the oil when it tells you to.
: : - Definately don't change it the first time before 7500 miles, since they ship them from the factory with a special "break-in" oil to further hone the cylinders (never heard of this before).
: : - No way a filter can function properly after 10,000 miles.
: : I'm sure BMW's engineering is quite different from Audi's, but any comments on these points? Are any of them applicable?
: : I would also like to know what the best oil-changing strategy is - don't want to change it every 10k miles and then have to replace the motor at 80 or 100.