Quote:
Originally Posted by CanAutM3
This is a good point, at WOT, the S55 is likely to use more fuel at 7300RPM than it does at 5500RPM even if it is producing the same power at both those engine speeds.
But as was discussed previously, this is a bit irrelevant since most of the EPA test is done at partial throttle.
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Agreed x 2
If history repeats itself, the EPA numbers will be XX/XX then owners will begin reporting their XX/XX at one, two, three or four mpg less than that on the Monroney sticker. Someday EPA may amend the label with "Do not expect EPA test fuel mileage if you drive it like you stole it."