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Old 07-01-2008, 01:20 PM   #11 (permalink)
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LilRed - '03 Mazda Protege LX
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New EPA ratings even worse thant I thought!

I just looked up the revised EPA milage estimates for my 2003 Protege here:
Vehicle Table

It's even worse than I thought... 22 mpg city, 28 mpg highway, 24 mpg combined. At least that's consistant with my slightly sporty style of driving up to now. At least that should be easy to beat.

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Old 07-01-2008, 01:23 PM   #12 (permalink)
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Old 07-01-2008, 01:28 PM   #13 (permalink)
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LilRed - '03 Mazda Protege LX
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Tire Size Comparison

Here is a comparison of the old and new tire sizes taken from http://www.miata.net/garage/tirecalc.html:

Code:
Specification Sidewall Radius  Diameter  Circumference  Revs/Mile  Difference
195/55-15     4.2in    11.7in    23.4in         73.7in        860        0.0%
195/60-15     4.6in    12.1in    24.2in         76.1in        833        3.3%
So at freeway speeds, a 3100 RPM before is now about 3000 RPM. That seems consistent with what I've observed. I'll still try to confirm the estimated 3.3% discrepency on my odometer using a GPS.
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Old 07-03-2008, 08:43 PM   #14 (permalink)
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Great News!

Details here

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Old 07-04-2008, 03:28 AM   #15 (permalink)
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Quote:
Originally Posted by sohl View Post
Details here

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