G20 BMW 3-Series Forum - View Single Post - Real world fuel economy for both 330i and M340i?

gs268 · 08-23-2019, 04:58 PM

So on my M340i although the display does read 28 mpg...I seriously don't think that is accurate. I am only getting 20 mpg. I start calculating number of miles driven till my next fill and do the math. Nowhere close to what is showing on the display.

08-23-2019, 04:58 PM	#38
gs268 Registered 0 Rep 1 Posts Drives: bmw m340i Join Date: Aug 2019 Location: Houston iTrader: (0)	So on my M340i although the display does read 28 mpg...I seriously don't think that is accurate. I am only getting 20 mpg. I start calculating number of miles driven till my next fill and do the math. Nowhere close to what is showing on the display.
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