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Old 09-24-2012, 04:08 PM   #254
Dadhawk
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Join Date: Feb 2012
Drives: '13 FR-S (#3 of 1st 86)
Location: Powder Springs, GA
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Quote:
Originally Posted by RYU View Post
I spent the last ~1500 miles on the stock 215/45/17 Primacy HP tires. My first few tank fulls yielded approx 33-34mpg babying the motor upon break-in. However, my last tank was spent with some moderate to hard canyon driving at 3000-6000ft altitude. That yielded approx 28-29mpg (not bad at all)....
I'm still running the Primacy tires, and have never really babied the car except keeping it (mostly) under 4K during break-in. One of the best tanks I had was one where I did about 60 miles of up and down hill twisties in the NC mountains but also included the remaining as highway miles.

I have been so very pleased with the mileage results. I NEVER expected to be averaging over 30MPG.

When I burn off the Primacy tires I will be changing to stickier tires so I expect it to drop a bit.
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