Average MPG Duration

[Big L]

Thanks for the reply Longshot.

What you are telling me is the same that I heard before. About 28 hours of driving will compute the average. I am just questioning the accuracy of this. I don't see how a couple minutes of idling can effect the AVG MPG to the extent it does with 28 hours of samples.

I know what you are thinking. "He must have reset the AVG MPG or something." I can assure you this is not the case.

Hasn't anybody else noticed how it will drop quickly while idling? Is it just mine? The other day I was picking up my kids and idled for about 6 minutes and the AVG dropped over 2 mpg. Just doesn't add up to me.