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Old 09-05-2016, 10:51 PM   #3 (permalink)
mcrews
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Join Date: Oct 2009
Location: Texas
Posts: 3,523

The Q Sold - '02 Infiniti Q45 Sport
90 day: 23.08 mpg (US)

blackie - '14 nissan altima sv
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no real difference between 'skinny' and normal tires. stay w normal. But you need to look at the over all gearing as mentioned above.
Taller tires (than stock) can lower rpm at highway speeds. how much time on freeway or in top gear.
Also all engines have a sweet spot in the rpm curve. I got my 02 Infiniti Q45 V8 to around 1700 rpm at 65. Really helped the milage. Went 5.5% taller on the tires.
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ECO MODS PERFORMED:
First: ScangaugeII
http://ecomodder.com/forum/showthrea...eii-23306.html

Second: Grille Block
http://ecomodder.com/forum/showthrea...e-10912-2.html

Third: Full underbelly pan
http://ecomodder.com/forum/showthrea...q45-11402.html

Fourth: rear skirts and 30.4mpg on trip!
http://ecomodder.com/forum/showthrea...tml#post247938
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