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Can I use the OEM mpg gauge on bmw to confirm improvments whit hhogas?
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jw1978 Offline
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Can I use the OEM mpg gauge on bmw to confirm improvments whit hhogas?
I´m pumping 15-20 amps or 1 - 1,5 lpm hhogas to a bmw 525 -01 useing the quad efi to adjust new values. Have done som testing and now wonder if OEM mpg gauge on the dash can be used to read improvments in mpg ?

I know the oem mpg gauge on the bmw its pretty correct, but can it do correct calculations whit hhogas...
02-07-2011 07:34 PM
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mike Offline
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RE: Can I use the OEM mpg gauge on bmw to confirm improvments whit hhogas?
No. It gets fooled by what the HHO and the EFIE are doing. But on the other hand, if it says mileage is better, it should be better. It just won't be accurate. Do your final calculations based on the gallons at the gas pump vs miles on the odometer. That's the final and true test of your mileage.

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02-07-2011 07:45 PM
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jw1978 Offline
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RE: Can I use the OEM mpg gauge on bmw to confirm improvments whit hhogas?
thanks Mike! fast replay be the way.

And fast shipping to of the quad efi to Smile

OEM gauge show the same mpg yet but I havent have time to adjust so much.
02-07-2011 08:26 PM
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mike Offline
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RE: Can I use the OEM mpg gauge on bmw to confirm improvments whit hhogas?
Ok. Let us know your results. And also let us know how well your mileage readings on your OEM mileage gauge compares to your calculated mileage at the fuel pump.

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02-09-2011 11:20 AM
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