High MPG Tire - Why Don't They Make One
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High MPG Tire - Why Don't They Make One
Why doesn't someone make a tire that is geared (pun intended) for economy. I switched to to 315/70-17 from the stock 265/70-17. My highway milage went up because the revs dropped (the 3.73 is now effectively a 3.43), but not as much as it could because the 315 is wider and a lower pressure (50 psi) tire.
If I could get a 265/85-17 that can take 80 psi (or even 100), then would get an mpg boost due to my revs dropping due to larger diameter & rolling resistance dropping (due to same width & higher perssure).
I think the truck would look pretty good too - stock tires look small because of the diameter, not width.
If I could get a 265/85-17 that can take 80 psi (or even 100), then would get an mpg boost due to my revs dropping due to larger diameter & rolling resistance dropping (due to same width & higher perssure).
I think the truck would look pretty good too - stock tires look small because of the diameter, not width.
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Originally Posted by MikeyB
The question is, why not make a non-commercial tire that can be used with standard rims?
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The Dodge HD Rams in Mexico comes standard with 225/95/17s. Much narrower but taller than the 265/70/17 or the 235/80/17.
My guess it's a limited market right now for HD 17" tires other than the load range E in 70 and 80 series. And not to mention I believe our rims are only rated to 80psi max.
MikeyB
My guess it's a limited market right now for HD 17" tires other than the load range E in 70 and 80 series. And not to mention I believe our rims are only rated to 80psi max.
MikeyB
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They do make tires intended for economy.
Check out this link:
http://www.greenseal.org/resources/r...resistance.pdf
The chart with the recomendations is at the bottom of the file.
Steven
Check out this link:
http://www.greenseal.org/resources/r...resistance.pdf
The chart with the recomendations is at the bottom of the file.
Steven
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Originally Posted by Steven B.
They do make tires intended for economy.
Check out this link:
http://www.greenseal.org/resources/r...resistance.pdf
The chart with the recomendations is at the bottom of the file.
Steven
Check out this link:
http://www.greenseal.org/resources/r...resistance.pdf
The chart with the recomendations is at the bottom of the file.
Steven
Guess I have to commision my own study!
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True, the comparison site does not compare all tires and all sizes, but it was all that I could find. What didn't surprise me was that the Michelin tires did well, especially the XPS Rib. I've had personal experience with that tire before, and it not only produced good mile per gallon figures, it lasted longer than any other tire that I have used, by a considerable margin. Of course, my usage was strictly on-road. If you are going to do your own research, contact the tire manufacturers, and inquire about rolling resistance.
Steven
Steven
#9
Originally Posted by Mark Hodowanec
Why doesn't someone make a tire that is geared (pun intended) for economy. I switched to to 315/70-17 from the stock 265/70-17. My highway milage went up because the revs dropped (the 3.73 is now effectively a 3.43), but not as much as it could because the 315 is wider and a lower pressure (50 psi) tire.
If I could get a 265/85-17 that can take 80 psi (or even 100), then would get an mpg boost due to my revs dropping due to larger diameter & rolling resistance dropping (due to same width & higher perssure).
If I could get a 265/85-17 that can take 80 psi (or even 100), then would get an mpg boost due to my revs dropping due to larger diameter & rolling resistance dropping (due to same width & higher perssure).
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