G37 Sedan

MPG below 20 when not accelerating?

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Old 05-17-2015, 12:25 AM
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JinV36
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MPG below 20 when not accelerating?

Wassuo Gs

So I had a question. I notice when I drive (Ds) that if I don't press on any gas but moving still, my MPG says its at 15-20. I understand we use gas when the car is on, but is it usually this low or am I leaking? Doubt in leaking as I don't see any.

I'm just wondering cause it's lowering my MPG (not that it matters) but if it lowers my MPG, Am I actually wasting that much gas?

Note this isn't happening 24/7, just on occasions. It usually says Im at full capability of the highest MPG (60 on screen).

I'm working off the dash screen in between speedometer and tach , as well as the one of the touch screen.

I noticed it cause I left my car on and I was moving going 5-7 mph in a parking lot and my mpg started at 16.7 (recently reseted) and I didn't price on the accelerator at all and it dropped down to 14.5 mpg. Just weird
Old 05-17-2015, 01:51 PM
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JinV36
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Bump anyone
Old 05-17-2015, 02:35 PM
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JSolo
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Calculate your mpg the traditional way. Do this over several fuels up of at least 10-15 gallons. This should provide better info than what the display is showing.
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