Tire Rolling Resistance?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Dan0, Dec 2, 2015.

  1. Dan0

    Dan0 Junior Member

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    Tires have all kinds of specs... but how do you determine, compare or specify Rolling Resistance?

    Thanks
     
  2. mrbigh

    mrbigh Prius Absolutum Dominium

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    " LOW" rolling resistance is a value of the tire by it's own specification determined by the manufacturer.
     
  3. Mendel Leisk

    Mendel Leisk Senior Member

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    In North America there's no official rating. Various manufacturers have euphemisms identifying their lower rolling resistance tires, but it's all very vague. Tirerack can filter out all but LRR tires, then you at least have a starting point, but there's still a broad gamut within that group. From there I'd just read, ask questions.
     
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  4. Dan0

    Dan0 Junior Member

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    Thanks... selecting tires for this car is a chore!

    What are peoples favorites... I saw Continental ProContact... (EcoPlus)...
    We have Uniroyal Tigerpaw Touring on there right now... pretty noisy...
     
  5. FuelMiser

    FuelMiser Senior Member

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    I'm pretty sure the Continental ProContact EcoPlus is out of production, superceded by the True Contact EcoPlus. We have gone through several sets of both of these varieties in the 15-inch size for our 2005 (now gone) and were very satisfied. The only thing I would say is we only got about 20K miles on a set, but this might be a Gen II thing. Our 2014 Gen III with 15-inch Yokohama Avids is still on the originals with 34K miles currently.
     
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  6. cproaudio

    cproaudio Speedlock Overrider

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    I'm at 68,875 miles on my original tires. 2 of them have been patched. I'm hoping to get another 20k miles out of them. I'm planning to put away 50 dollars tire fund every time I fill up my tank.
     
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  7. Dan0

    Dan0 Junior Member

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    68, 875... that's pretty good! I think we only got about 57k out of our original tires.
    How often do you rotate? I think that's been my problem. I should probably do a rotation every time I change the oil.
     
  8. cproaudio

    cproaudio Speedlock Overrider

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    rotated every 5K miles the first 30K miles then 10K miles after that. I rotate them during oil change.
     
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  9. Mendel Leisk

    Mendel Leisk Senior Member

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    Up here rotation with snow tire swap, so yearly.
     
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  10. wjtracy

    wjtracy Senior Member

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    I've previously posted some really old data on rolling resistance of few tires. Generally each tire has it's own curve, and as the tire warms up (first 15-mins) the rolling resistance improves (decreases). Also +tire pressure reduces rolling resistance. MPG increase is approx. 10-20% of rolling resistance decrease.

    The only modern data I've seen is TireRack.com where they measure MPG of the leading tires.
     
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