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

mofomat · 07-27-2020, 01:45 PM

How many people claiming these fuel economy figures are just going by what the OBC says? My F30 318i is extremely inaccurate, and is always around 4-5 mpg optimistic when I compare my figures after brimming the tank. My X5 is usually pretty close.

07-27-2020, 01:45 PM	#137
mofomat Colonel 792 Rep 2,234 Posts Drives: Audi R8 V10, BMW 330e Touring Join Date: Aug 2005 Location: Maastricht, NL iTrader: (0)	How many people claiming these fuel economy figures are just going by what the OBC says? My F30 318i is extremely inaccurate, and is always around 4-5 mpg optimistic when I compare my figures after brimming the tank. My X5 is usually pretty close.
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