flyingman's Forum Comments
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Recently installed a an engine analyzer on my 335d. It is the ECO Route by Garmin that connects to the OBCDII port and links via bluetooth to the Garmin so you can see mutiple engine parameters.
Some of those are engine load and air mass flow. Stopped at a red light in Drive I get a slightly higher Engine Load and Air Mass Flow than when I tip it into Neutral. Same goes for the A/C being turned on or off.
So, definitely sitting in Neutral will save you some fuel, but is it worth it? Depends how much time you sit waiting at stop lights.
posted by flyingman May 15, 2011 at 5:32 AM