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Originally Posted by t walgamuth
they were a little sloppy and didnt always record all the info so there were only three tanks that i could decifer. they worked out to 21, 26 and 22 mpg. i can tell that the one at 26 included a trip to colombus oh. so that was pretty much all highway.
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Average fuel economy with very poor data: 23.0 mpg
Quote:
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Originally Posted by t walgamuth
so then we changed the rear to 307. i wont put a sharp pencil to it but that is about a 10% change in ratio.
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Ratio change = 11.3%
Quote:
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Originally Posted by t walgamuth
the next twelve tanks i did. the mileage on them was 29.4, 20,26,28,28,25,30,20+,28,20-,22 and 20. the ones near between 28 and 30 were all highway. the others were mostly town driving.
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Average fuel economy: 24.7 mpg
So, the average fuel economy improvement is
7.4%
As I've told you, you'll never get the the same percentage fuel economy improvement as the axle ratio change.
Even with your widely varying driving conditions,
your own data proves my previous statement.
It's time to get off your soapbox and agree that you're not correct.