Got 37.9mpg (per computer) for 45 miles and noticed only ~0.6 Avg MPG increments?

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09-11-2013, 04:31 AM

#11

rarewolf

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Location: Avalon Peninsula, Newfoundland

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Quote:

Originally Posted by uberwgn

Mark, get that fuel consumption displayed calibrated! They're typically 10% optimistic.

Based on my calculations after 4 fill-ups and other's posts, I'd estimate typically 5-10% optimistic, and we should probably assume the correction to be different if driving habits are typically urban versus highway. As they say ... "your mileage may vary" ...

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09-11-2013, 10:36 AM

#12

Mark P

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Location: Raleigh, NC

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Quote:

Originally Posted by uberwgn

I've tracked my displayed vs. manual calculation over the life of my A4 and found that I can get an accuracy of +/- .3mpg around the city, but more variance on long trips. Most of my driving is in the city so I accept the fact that the highway displayed value is still a bit higher than it should be.

Ha I had done the same with my A4 and S4 previously. Here's the A4:

http://ctny.audiworld.com/mark/a4/mileage/

With the S4, I was planning to adjust it when I went stg3, but it actually got more accurate with the different hardware. It seems I removed that data - I'll get it back online next week