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Old 01-17-2013, 11:38 AM
solstice solstice is offline
Officially Welcomed to the 'Fest
Location: Seattle
 
Join Date: Aug 2010
Posts: 2,328
Mein Auto: 2015 F80 M3
Have any of you who uses this function gotten a good idea of your fuel savings over a longer period? Is it more than 1 mpg? I'm not interrested in details as how many stop lights, distance etc. just your mpg with it on vs. off if you have measured both. Both our cars have it ( 2011 M3 and 2013 Cayenne ) but both are set to permanently off since neither of us like the sensation of the engine shutting off and on.
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