View Single Post
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: 867
Mein Auto: 2011 535i
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.
2011 535i
2013 VW Golf TDI
Reply With Quote