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      05-13-2025, 08:58 AM   #12
Mech Spec
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Drives: '25 M240xi
Join Date: Dec 2012
Location: MA

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Quote:
Originally Posted by BlkGS View Post
I have not noticed any difference in fuel economy between having it on or off. I turn it off all the time because it's annoying, and it's hot here and I don't want my AC to turn off or fan to slow.
You need the engine off for 7-9 seconds before you have saved any fuel. In my own usage, I started tracking how long the engine is off with start stop. For me it is only like 10-20% of the times start stop engages that it has the engine off for more than 9 seconds.



I find start stop annoying, and as noted above its not really saving fuel for me, so my car always starts in sport individual mode
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2025 M240i Xdrive TNM

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Last edited by Mech Spec; 05-13-2025 at 09:22 AM..
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