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Toyota Prius Tire/Wheel Questions

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  • Prius nightmare is over. Had 2002 prius. New computer, new fuel pump/ gas tank. Oh hell yeesss, they are all one piece on prius! Then the "hybrid" part all went bad within the past year. This was all covered. But I'm done. Got a corolla no problems since.
  • Our '05 Prius with 37,000 miles just got a new set of plain-jane all weather tires. The tire shop filled them with nitrogen. We ran them at spec pressure on a cross-state trip, then upped the psi in all four tires by 2 psi. Either way, we got significantly lower mpg with the new tires. Driving was on interstate highways in eastern oregon and so. Idaho. We drove very conservatively at had to really be careful to break into the sub-40 mpg range. On similar trips we've averaged 51-53. Could it be the nitrogen, or the newness of the treads? The Toyota dealership couldn't find anything wrong. But somethings wrong. Any ideas?
    Rick
    Bellingham
  • 210delray210delray Posts: 4,722
    It's not the nitrogen, and adding 2 psi isn't going to make any measurable difference. The tires may have higher rolling resistance than the originals. What brand and line of tires did you get?

    But try a few more tankfuls before you give up. Was there a headwind on this one trip?
  • pathstar1pathstar1 Posts: 1,015
    There are many posts over on Priuschat and Priusonline about new tires dropping mileage. It's normal. Should improve after 5000 mi. or so. I guess new tires are very "sticky", just like in NASCAR. ;)

    Many owners use 42 PSI front and 40 PSI rear for better mileage. Do check the tire sidewall for the max. inflation pressure, and do set the tire pressure when the tires are "cold" (not driven on for 5 hrs.).
  • 210delray210delray Posts: 4,722
    Just adding that most passenger car tires now list a maximum inflation pressure of 44 psi, so running with 42 front and 40 rear will be fine. But some tires still have a max pressure of only 35 psi, in which case, you don't want to put in more than this.
  • capriracercapriracer Somewhere in the USPosts: 785
    I'm going to address several issues, not just the one in the post I a replying to.

    1) It is a little known fact that new tires have more RR than worn out tires, even if they are otherwise identical.

    2) Tires designed for hybrids generally have less RR than other OE tires.

    3) OE tires generally have lower RR than tires designed for the replacement market.

    The above means that if you buy new tires for your hybrid, you should expect redictions in fuel economy, and the amount could be significant if you selected a different tire.

    4) If the pressure listed on the sidewall says 35 psi max, then the tire can be safely inflated to 44 psi. However, there is a risk associated with using pressures significantly higher than what the vehicle manufacturer specifies. I consider anything more than than 5 psi as significant and the risk is that the tire will be more prone to impact type failures and punctures.
  • I do not see replies to this post (on either Forum) and have the same question: what replacement tires are recommended for Classic Prius? I'm trying to balance traction (which the originals lack in rain and snow) with the gas mileage that I want to attain. I realize there will be a trade-off but would like to minimize it, obviously. Any recommendations are appreciated.
  • pinkopinko Posts: 2
    One of my rear tires blew out yesterday. Nothing lit up on the dash, since it was pouring rain, I hardly noticed anything, but the tire is toast.

    Any suggestions re: replacing just one tire? The current tires are the originals that came with the car, which has 26,000 miles. I think they are Goodyear Integrity. Can I just get another one?

    This is my first car, and my first tire issue, so any advice would be helpful.
  • pathstar1pathstar1 Posts: 1,015
    I put Nokian WR tires on my 2007 Prius and had -NO- loss of fuel economy, but a great increase in traction. They are "true" all season tires. They have the snowflake symbol on the sidewall, meaning you don't usually have to put on chains when it's required on interstate highways. They wear well in the summer, work well in rain, in snow, and on ice. The current version is the WR G2.
  • pathstar1pathstar1 Posts: 1,015
    You have three options. I'll list worst first, best last.

    You can get one stock tire to replace the destroyed one. You should ensure it is placed on the rear, and never rotated to the front, as it will be larger in diameter, and will put more wear on the differential if used on the front with a 26,000 mi worn tire. It's not a big issue, just recommended to keep wear at normal levels.

    Next best option would be to purchase two tires, and keep them on the same "axle", front or rear. This would allow standard directional tire rotation, front to rear, but never side to side.

    Your best option would be four new tires.

    Choose based on what you can afford. Safety improves as the option is "better", but all would be acceptable safety wise.
  • pinkopinko Posts: 2
    thanks for the advise. Someone told me that it's possible to "shave" a tire, so that you have the same wear with a new tire (so that it matches). Is this true?
  • pathstar1pathstar1 Posts: 1,015
    It's possible, but good luck finding a place to do it. Most just want to sell you a tire/tires, mount, balance, get their money, and get you out the door. The tire shaving machines are pretty specialized. Perhaps if you could find a race shop they might have one (they shave street tires for racing in certain classes).
  • 210delray210delray Posts: 4,722
    I can't see the logic in shaving away useful tread life.
  • waterdrwaterdr Posts: 307
    Tire shaving is for racing applications, not for a street car, let alone a Prius. New tires don't grip as well as worn ones. So, when racing, you "shave" the tire in order to wear it down so it grips better.

    Yes, it takes life off the tire. Drag races shave DR's (Drag Radials), for instance.
  • waterdrwaterdr Posts: 307
    There is actually some logic to this fi your tires are very expensive. For example, let's say you have 15k on your tires and still have useful life left, but you get a blow-out. At this point, you have the option to replace BOTH, or shave the new one. This might be cost-effective on a $200 tire, but certainly not on a $75.

    Tire Rack will shave any tire you buy from them I believe. You just need to tell them how many mm's of tread you want left.
  • I have a 2007 Touring with Bridgestone Tourenza EL 400 Speed rating H 16 inch
    We had one go flat/road hazard in the tread and needed a new one. No One has these tires! Wound up having a shop order one from Tires.com, other than that these tires are on National Back Order!

    What is a good Alternative for these when they wear out? Is the speed rating related to a lower rolling resistance/higher mileage? I paid $141 for this one tire and had quotes from $ 180 from a Firestone Dealer to $220 ffrom a Toyota Dealer ( if they had them)

    I suspect that these "expensive tires" are what I'll need to keep on it if I want the mileage to stay reasonable?

    Thanks for feedback!
  • I purchased a 2007 Prius in late winter and am trying to figure-out my best tire strategy for next winter. I live between Vail Pass and Officers Gulch on I-70. I drive down a 5% grade to work at 4:00 AM and try to ascend before the tourists are released from the ski resorts when the lifts close at 4:00 PM. Most of the winter, Officers Gulch becomes iced pavement due to the shade at 4:30 to 5:30 PM and vehicles, primarily AWD SUV's, fill the ditch. I have never observed a Prius anywhere in Summit County in a ditch.

    During the winter, I have observed 18 Vail Pass road closures. At least 20 vehicles per season strike the cable rails on the curve at Officers Gulch, 198 Mile Marker Eastbound. In the past week, I experienced an 8 hour road closure due to a 70 vehicle pile-up and single fatality on Vail Pass, 189 Mile Marker Westbound. However, I have not experienced any slippage problems with the original-issue tires on my Prius, driving 35 MPH in white-out; 45 MPH on snowpack; 55 MPH on sanded mulch and slush; and 65 MPH on dry pavement.

    Please provide me with some Prius owner experiences with winter driving conditions. I do not mind burning through tires a bit faster, but have limited space in my studio condo for storing tires in summer. I have studied various recommendations for winter tires:

    All-Season: Michelin HydroEdge, Michelin X Radial, Goodyear Assurance Triple Tred

    Softer Rubber Performance Winter Tires [H Rated]: Goodyear Eagle Ultra Grip GW3 H

    Soft Rubber Grip Winter Tires [Q Rated]: Michelin X-Ice, Goodyear Ultra Grip Ice

    :confuse:
  • During late winter, I bought my 2007 Prius with standard-issue tires. I have not experienced any slippage issues in snow, slush, or ice. However, I am concerned about next winter, since I live in the mountains and must climb 5% grades in snowstorms.

    Please share any experiences with winter driving conditions. I have researched winter and all-season tires, without any conclusions. Goodyear Assurance sounds like a good all-season tire. Goodyear Eagle Ultra Grip sounds good in a softer H-rated tire.

    How much of a snow tire will I need?
  • Among the many myths that I hear concerning the performance of a Prius - lack of power, lack of fuel savings against conventional engines, expensive battery replacements - my supervisor claims that a Prius wears through tire tread faster than other vehicles because of the weight of the battery pack. I would enjoy responding with a technical analysis of this myth based on the experience of other operators.

    What is the weight of a Prius, with light construction materials, compared to the average SUV?

    What is the life expectancy of tires on a Prius versus other typical vehicles?

    What is the cost of tire replacement?

    I cannot imagine any basis for any problems with a Prius over the lifetime operation costs of SUVs. I am tired of hearing from the misinformation campaigns. :mad:
  • I live in upstate NY in the snow belt & have all my life. I just got a 2008 Prius with the stock Good Year tires on it. I immediately went to Tire Rack & got 4 Blizzak's. Front wheel drive is great, especially with ABS, traction control & VSC BUT.... There is just no replacement for snow tires. If you live where it snows there just is no way around it. All season's just don't cut it. 4 Blizzaks cost me $232.40 delivered to my door from tire rack. You just can't beat that. Get a spare set of rims & don't forget the tire pressure monitors & all you need to do twice per year is jack up the car & change the tires. It's just not worth taking the chance on snow & ice with all season's. I have had Blizzaks on my last 3 vehicles now & swear by them. I have never had any other snow tire handle that well on ice, or snow whether it be a coating or 3 feet.
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