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Old 12-30-2011, 08:06 AM
chuck92116's Avatar
chuck92116 chuck92116 is offline
Officially Welcomed to the 'Fest
Location: San Diego
Join Date: Nov 2011
Posts: 1,069
Mein Auto: 2015 435i Convertible
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.
2015 435i Convertible
M Sport, M Performance Power Kit

2016 Lexus CT200H
2016 Lexus NX200t
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