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In Reply to: Oil Change posted by GH on February 23, 2002 at 12:46:26:
Not only have the lubricants gotten significantly better, the filtration systems, engineering tolerances/specifications allow for longer working lives of same. Further, the quantity of oil in your car, almost 2 gallons, is not working as hard as 4-5 quarts would (common in older cars). When it comes to brake fluid, the real enemy is condensed water that is coming into the system through heat/cooling exchange in the atmosphere. Brake fluid is compressable, while water will turn to steam-and corrode componets. If you have racing issues-then repeated extreme use would also take into consideration (potential) boiling of the fluid within the caliper(s). Higher temp fluids would be needed.
In general, I think common sense would indicate that BMW understands the importance of preventive
maintance both to their customers and potentially to their NewCar/CPO liabilities....Older cars either could not benefit from the use of synthetics) because the products were in development (did not yet exist) or the vehicles did not contain the technologies that could support same--i.e. it is common for older vehicles that use synthetic motor oils to weep motor-oil past drain-pan gaskets/seals that are not designed for same...
In any case, you need to at a minimum follow the manufacturers guidelines and then decide if you are driving "harder" than average...
Good Luck
Steve F.
BMWCCA
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