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Originally Posted by No Doubt
What if the PCM mathmatically averages all instantaneous mpg readings and displays it as "Average MPG". In that case as the number of crazy instantaneous mpg readouts increased so would the average mpg.
In other words if you coast a lot or back off the throttle a lot, as can happen when not using cruise control, your average would be greater. If you're doing 75 mph and reduce speed to 70 your instantaneous mpg increases dramatically. This in turn results in an increased average mpg. The mathmatical average of a bunch of 99's is greater than a bunch of 19's.  |
that all depends on how far youre going.....if you travel a mile and do what youre saying than yes you could get something like 60 mpg coasting but very slow, but if you travel a distance like mine for example there is no way around it. i kept an avg speed of 71 mph so i think there is some truth to it. if you coast a lot youre still going to have to get back on the throttle to keep your avg speed up.
