How is MPG calculated?
#1
How is MPG calculated?
I have a 2009 FEH with 35k miles and I get from about 29.5 to 31.5 MPG. (according to the standard MPG indicator on the dash)
Does anyone know how the vehicle calculates the MPG? Does it use the last 500 miles or 1000 miles in its algorithm?
I watch the MPG as much as anything on the dash and I'm just curious what is "under the hood" in this instance.
Does anyone know how the vehicle calculates the MPG? Does it use the last 500 miles or 1000 miles in its algorithm?
I watch the MPG as much as anything on the dash and I'm just curious what is "under the hood" in this instance.
#2
Re: How is MPG calculated?
I have a 2009 FEH with 35k miles and I get from about 29.5 to 31.5 MPG. (according to the standard MPG indicator on the dash)
Does anyone know how the vehicle calculates the MPG? Does it use the last 500 miles or 1000 miles in its algorithm?
I watch the MPG as much as anything on the dash and I'm just curious what is "under the hood" in this instance.
Does anyone know how the vehicle calculates the MPG? Does it use the last 500 miles or 1000 miles in its algorithm?
I watch the MPG as much as anything on the dash and I'm just curious what is "under the hood" in this instance.
I'm sure the factory gauge will calculate at least 884 miles the same way every reset in the '09. My '05 FEH would only calculate about 200 miles correctly before it would start dropping older miles and start calculating the new MPG data.
My lifetime MPG can be viewed here by scrolling down at the site:
http://www.cleanmpg.com/index.php?pa...9&viewcar=2612
GaryG
#3
Re: How is MPG calculated?
I would say it estimates it by the pulse width on the injectors and does something with how far it's gone how many and how wide those pulses are and figures out what the approximate mileage is, that's how I understand it at least.
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JoeFuture
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01-29-2007 04:34 PM