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Old 05-18-2011, 11:00 PM   #2 (permalink)
California98Civic
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Join Date: Mar 2011
Location: Coastal Southern California
Posts: 5,213

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 64.33 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
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Quote:
Originally Posted by SentraSE-R View Post
Essentially identical performance. It's roughly confirmed by my 900 mile trip last weekend with the new tires. I got 53.7 mpg my first tank and 47.7 mpg topping off the tank in preparation for the drive home. The 53.7 is my best highway tank, and 47.7 is about average for me when I had the old tires. The new tires get similar mpg to the old ones.
Well, the new wheels look cool. And these numbers could mean that your MPG has actually improved, as you noted, the test itself is usefully suggestive but not conclusive. You might learn more as you drive around more. The extra weight will of course matter more in city driving, while the taller gearing won't help as much, no?

At minimum you know your new wheels are not costing anything too significant in mpg. And they look sharp.
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.

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