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Old 01-03-2012, 05:18 AM
Michael Schott Michael Schott is offline
Location: Farmington Hills, MI
Join Date: Dec 2007
Posts: 6,614
Mein Auto: 2017 VW GTI Sport MT
Originally Posted by chuck92116 View Post
On the F10, it makes a whopping 1 MPG difference. Why bother?

Any fuel savings will be lost to premature component failure.

This reminds me of the V8-6-4 and converted gas to diesel engines that GM came out with in the 70's. The drivetrain was not designed for these kinds of features and they failed prematurely.

I am all for better fuel economy as long as it makes sense. But with modern BMWs constantly having battery drain issues, this makes no sense to me.
What "constant" battery drain issues are you referring to? I've certainly never had one in 50,000 miles.
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