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Citation680 Citation680 is offline
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Car: 2012 bmw 328i n20
Default Fuel consumption with jb4 - 09-12-2017, 02:43 PM


Since I have my jb4 installed in my bmw f30 328i, I have noticed that the instant fuel consumption indicator (MPG in US cars and Liters/100 kms in mine EU car) indicates very high levels of fuel consumption, even at very moderate throttle inputs. Is it possible that this information showed are not real because I have the Jb4? Maybe because is an EU car? It also happens in map 0.

Thanks for your support
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Steve @ BMS/Fuel-It!'s Avatar
Steve @ BMS/Fuel-It! Steve @ BMS/Fuel-It! is offline
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Default 09-12-2017, 10:23 PM

Have you manually verified your mileage?

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Boland01 Boland01 is offline
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Default 09-13-2017, 06:07 AM

I found on my 535ix on map 5 if I keep my foot out of the go pedal my mileage actually went up. Toughest part is keeping a light right foot though.
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Citation680 Citation680 is offline
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Default 09-28-2017, 03:17 PM

Sorry for my late reply.
I have checked my real consumption and it's almost the same that without the jb4. Just the indicator seems that it is not accurate at very lo throttle pedal inputs.
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