Quote:
Originally Posted by blktoptrvl
Why do you mention cost? Is ATF that much more expensive than oil (my first automatic)?
I hear what you are saying about a solution looking for a problem; but if it cost me an extra $150 or so a year to change transmission fluid, that wouldn't stress me at all; especially on a vehicle this expensive.
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It would cost BMW more to install finer external filtering, which was your suggestion. And any cost, even a small one, is too much if it doesn't do anything to prolong transmission life. If we saw failed or burnt fluid, and transmissions failing due to that failed fluid, then it would all be justified. But as long as transmissions aren't failing from not changing fluid, even ten years after they came up with the recommendation to leave it in for the lifetime of the transmission, every day that passes it is proving out the theory of the original design team, the ones who said just leave it alone.
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2007 X3 3.0si, 6 MT, Premium, White
Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue
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