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Crappy OEM tires (Yoko Avid S33)

Discussion in 'Gen 3 Prius Fuel Economy' started by PSD Prius, Jan 17, 2013.

  1. PSD Prius

    PSD Prius Junior Member

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    Good day everyone. I have owned my prius since 2011. I absolutely love the car. The only gripe I have so far is how quickly the OEM tires have worn down. I have 35K miles on car, had the tires rotated every 5K miles, and drive on roads that are well kept (no pot holes, divits, missing chunks or anything like that). I called the dealership from where I purchased the vehicle, and they said that OEM tires do not come with a treadwear warranty. strange. What is your take on the Yoko's?

    So, with that being said, I am looking for a new set of tires. I am looking at the Michelin Energy Saver A/S, Michelin Defenders or Goodyear Assurance. I looked through F8L sticky on LRR tire thread (thanks btw), and it was very helpful. Which tire do you all recommend? Which tire have you noticed have a good treadwear life?

    Thanks for stopping by.

    Jay
     
  2. ForestBeekeeper

    ForestBeekeeper Active Member

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    We were told that the OEM tires would wear quickly and would not have a long life. So we knew to expect it.

    We have to use studded winter tires part of the year anyway. There has been a lot of debate here as to which brand name is 'better' for winter driving.

    As for summer tires I am not sure if any one brand is really any more cost-effective than another brand.
     
  3. F8L

    F8L Protecting Habitat & AG Lands

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    There is indeed a big difference between all-season/summer tires.

    We know that some tires are much more efficient than others. Some have very long tread life. Some cost a lot less than others. The trick is figuring out the fuel economy difference and then doing the math.

    Treadwear warranty / mpg = gallons of fuel used * gas price/gallon = money spent on fuel + price of tires / tread wear warranty = cost per mile

    Let's use the Michelin Energy Saver A/S and Goodyear Assurance Fuel Max as an example:

    Energy Saver A/S
    65,000miles / 53.8mpg= 1208 * $3.6/ga = $4,349 + $432 / 65,000miles = $.0735/mile

    Goodyear Assurance Fuel Max
    65,000miles / 51.6mpg= 1259 * $3.6/ga = $4,534 + $396 / 65,000miles = $.0758/mile

    Tire Test Results : When Round and Black Becomes Lean and Green

    As you can see, a more efficient tire can be more cost effective than a cheaper tire. Even the Defender with its 90,000 mile treadlife loses out to the Energy Saver A/S because it is less efficient. I would take the Defender over the Fuel Max, however. It's a better tires and has a better cost/mile rating.
     
    walter Lee, PSD Prius and PosauneGuy like this.
  4. ForestBeekeeper

    ForestBeekeeper Active Member

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    Thank you. That is interesting.
     
  5. F8L

    F8L Protecting Habitat & AG Lands

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  6. Blu-ray

    Blu-ray Blizzard Brigade #215

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    That's strange. I received Tire Warranty information for my Yokohama S33's when I bought the car. It comes with tread and road hazard so I'm not sure if it's just something my dealer does special? It's up to 40K miles if I remember correctly.
     
  7. Mendel Leisk

    Mendel Leisk Senior Member

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    How much tread depth remains? Are the wear bar indicators going (or nearly) solid right across? A cheap tread-depth gauge will help you check. Legally you're supposed to replace when the wear bars are solid across. And that's what treadwear warranties consider as "worn out".

    I believe that's around 2/32" remaining tread depth. But popular opinion is to replace a by the time you reach around 4/32", especially if there's any snow in your future.

    Anyway, I'd suggest either the Michelin Energy Saver A/S, or for a bit cheaper: the Bridgestone Ecopia EP20. Just checke and see both are available at Costco USA, so readily available anywhere I'd guess.

    We've had the EP20's on a previous vehicle, they were decent road feel, quite good for rolling resistance.
     
  8. walter Lee

    walter Lee Hypermiling Padawan

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    I've got about 31K on mine. :coffee: Last time I looked :barefoot: -- my tires seem to have quite a bit of tread left. Geez, I've got a vernier caliper - I should be measuring them to see if I have 4/32" of tread left :rolleyes: ... When my Yoko Avid s33 wear out - I will replace them with the best LLR tires I can get. Maybe something like Michelin Energy Saver A/S?
     
  9. jhinsc

    jhinsc Senior Member

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    I replaced my Avid S33's when they hit 40k as I was preparing for a long road trip up north. If it wasn't for the trip, I'd be looking for replacements about now, with 44,500 miles. I wanted Michelin Energy Savers but at the time there were none to be found, so ended up with Ecopia EP422's. Not the best tire out there, but it's a great tire for the money. Out the door price at Costco was about $420, with the $100 rebate. I have about 4,500 miles on them now and I can tell they'll go at least 60k miles easily (65k warranty). So far my mpg's have not been impacted either way.
     
  10. priusrat

    priusrat Junior Member

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    I love my Michelin Energy Savers A/S. Very smooth ride. Can't say whether it's really increased my mpg- run about 49 winter, maybe 52 summer.
     
  11. Codyroo

    Codyroo Senior Member

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    I'm going to be scared to see what you will be able to do with a broken in set of Michelin's. Woo Hoo!
     
  12. Codyroo

    Codyroo Senior Member

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    I got 51,000 miles on my Yokohama's before I switched to my Michelin Energy Saver A/S tires. There was no drop in fuel efficiency between my worn (2/32) Yokos and the brand new Michelin's. Actually, this last summer, I got 4 of my best 5 tanks using these new tires. I can't wait for next summer to see how well they do.

    They've been great. Less road noise and better road feel. There was some tram-lining early in their life on grooved pavement, but that has gone away. Great tires!
     
    walter Lee likes this.
  13. PSD Prius

    PSD Prius Junior Member

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    Thanks everyone for your feedback. I stilling at about 4/32 right now at 35.5K miles. I am thinking of sticking with Michelin, energy saver A/S or defenders. not sure. F8L, thanks for your price breakdown, very informative.
     
  14. PSD Prius

    PSD Prius Junior Member

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    To my surprise, after making this post, I'm averaging 55mpg on these old yokos. Average temp in the AM is 34*, and 65* in the afternoon. Can't wait to swap them out with the Michelin ES/AS later this year.

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