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Traction in deep snow

Discussion in 'Gen 3 Prius Main Forum' started by marcinpisz, Dec 5, 2009.

  1. bwilson4web

    bwilson4web BMW i3 and Model 3

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  2. Tideland Prius

    Tideland Prius Moderator of the North
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    try 6' down south! (I think it was craigmyle?)


    So far so good in the same storm. Residential streets are unplowed so we're driving in deep snow. Rocking technique (both forward only method and the forward/reverse method) helps. I have studless winter tyres. The one or two times I got spinning tyres is because the car is basically sitting on the snow so I have to try and reverse out of it and find another route around.

    TRAC works. It allows the wheel to spin (slow or fast depending on your accelerator input). I have caught it killing all power (I still start a thread on this) but for the most part, it's good. It's the ground clearance that "kills" it. I mdae it to work on time.
     
  3. aapoppa

    aapoppa formerly known as "Popoff"

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    I'm using Michelin xice i2 snow tires but, in the situation I'm describing, I was trying hard to lose traction to see how the traction control would do.

    In my '05, if a wheel lost traction, the TC would kick in and kill ALL power to the wheels. My experience yesterday indicated that the TC in the Gen III is more user friendly and will allow the car to perform better in slick conditions.
     
  4. bobguynn

    bobguynn New Member

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    Thanks for making this point. I thought I missed an important Toyota marketing press release. Wish there was an AWD mode...I'd buy it! This is our second winter in our '09 genII. We just mounted a set of 4 Blizzaks on the 15" rims. We'll see if there's a difference.
     
  5. jon_lin

    jon_lin New Member

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    Word of caution - After the heavy snowstorm here, we had some ridiculous road conditions. My oil access door had actually lost its mounting clips, so the oil access door was dragging along the road for the last few days. I think its because of the snow mounds that form in the middle of the lane between the times (is there a term for that?), that the snow mounds/ice may have ripped the mounting clips off.

    If you hear a grinding sound, check to see if that access door has fallen off. Usually happens when you brake and your speed goes below 40km/h (25 mph).
     
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  6. Tideland Prius

    Tideland Prius Moderator of the North
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    Will keep that in mind. Had no such issues last year with the 2005 when that same mound in the middle of the lane became a solid block of ice.
     
  7. eglmainz

    eglmainz New Member

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    Well, for the last two mornings, I have had to contend with 1-2 inches of snow on the roads (in my Prius V), and will admit that it handles very well with only a little snow. Even on slanted streets, a firm test of my ABS this morning yielded a very straight stop (My Odyssey pulls to the direction of the slant, even with ABS).

    Tomorrow, I will get to experience driving in 8-12 inches of snow, so I'll report back how well that works.
     
  8. codybigdog123

    codybigdog123 Got Mad and Left in a Tizzy

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    When it comes to driving in snow, thinner tires are better. The 195's on the Prius (15 inch tires) is, I believe, thinner than the stock Civic tire (205's?). Everything else being equal, that will help traction in snow.

    But in DEEP snow, there's no substitute for ground clearance. The Prius has low drag, so the front air dam is going to limit how deep the snow can be before losing traction. I don't think I would venture out in deep snow...
     
  9. chrisj428

    chrisj428 Active Member

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    I hope you're right. But the latest returns show we're not gonna get it. I, for one, am disappointed. :pout:
     
  10. Tideland Prius

    Tideland Prius Moderator of the North
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    Don't be. 15-20cm (6-8") is about its limit. Once i'm moving, it isn't a problem but if I have to stop for a stop sign, it takes time to get going again. Ground clearance is definitely a drawback for snow (But an advantage for aerodynamics).

    What would be nice is to have an air suspension setup that allows for an inch or two of extra height when navigating the residential streets (That never get plowed). Granted, it is an extra cost (and potentially extra maintenance for those keeping the car for the long run) but there must be a way to just give us that extra inch or two when we need it. Maybe have it as part of a cold weather package so that those in the sunny states don't have to pay for the extra cost they'll almost never use.
     
  11. djg12

    djg12 Junior Member

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    Well the first appreciable snow here in NH was this past week. It came in at approx. 7-9 inches. Actually I had forgotten how well this Prius handles in the snow.
    Mid afternoon I decided to leave the house after clearing out the driveway. The street had only been plowed, somewhat in the center, and then driven on, so it was really a mess. The car slowly made its way. (BTW-I do have snow tires, Nokian Hakka somethings!) Before getting to the main drag my street goes up a substantial hill. There were signs in the road of others having a hard time, I thought I was doomed. But the car slowly went up, the traction light would come on, it would jump/lurch a little then continue going. Very impressive.
    Like I said, I had forgotten how good it is in snow. Last year it was equally impressive, nothing stopped it. Other cars were spinning their way through things and the Prius just motored onward.
    Traction control is the way to go. And the VSC and ABS round out the package. I would never drive anything in the snow without these technological improvements, and snow tires of course.

    Good luck out there everyone, and be careful.
     
  12. seegarman

    seegarman Junior Member

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    Glad to hear that most are experiencing good results from your snow adventures. Sounds like most of you are prepared with snow tires installed.

    Have any owners driven in deep snow with the originally-equipped tires? What were your experiences?
     
  13. DetPrius

    DetPrius Active Member

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    I haven't yet but I will be with the first significant snowfall.

    I thought changing to snow tires in the fall and back in the spring went out in the 1970s until I joined PC. I have not heard of it anywhere other than here. I haven't known anyone that does this in decades.

    I drove my 88 CRX SI, also a very low car, for 7 winters in MI and never missed a day of work due to snow and never got stuck and I never used snow tires in the winter. I've passed many SUVs and 4x4s in the ditch with my CRX but I think that all has to do with driving abilities and not the vehicle. I think 4x4s and SUVs are driven in the winter as if they are invincible and that is why they get in trouble.

    I don't doubt they perform better than non winter tires, but I don't care to deal with the cost and having to change them twice a year.
     
  14. qbee42

    qbee42 My other car is a boat

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    I did the same with my CRX, but in the snow belt east of Cleveland. If it was really bad I would drive my Jeep C-J5, but I almost never had to do that.

    Tom
     
  15. jayman

    jayman Senior Member

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    A co-worker of mine had a 2006 Range Rover HSE with that feature. There was a switch on the driver door armrest that would command the Rover to "squat" at the curb, to make getting in and out easier.

    There was a switch on the center console that allowed the driver to make changes to ride height. Eg: in 4L, the vehicle would raise an extra inch or two.

    If I recall, the briefly available Audi All Road had a similar feature. Makes more sense on a car structure, as they're lower to begin with

    BTW: that co-worker got rid of the HSE last year for a Toyota Sequoia Platinum. Much bigger, around +2 mpg on average, so far more reliable, and a good $35,000 cheaper than a Range Rover
     
  16. Tideland Prius

    Tideland Prius Moderator of the North
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    lol.. but the Range Rover still has that Britishness about it. The Sequoia is still pretty expensive in my book... $65k!

    Yeah those air suspension gadgetries are only available on luxury vehicles. Some luxury sedans (and I forget which one exactly but definitely not the LS or the XJ... maybe it was the A8 or S-Class) that have height adjustable suspension.
     
  17. djg12

    djg12 Junior Member

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    Well, as far as snow tires. I had not utilized them for years either.
    Too many years of needlessly driving SUVs. The first year I left the SUV world I got snow tires. My commute is 55 miles one way and if there is a snow storm and it is dark and snowy with decidedly snow covered roads, it is much safer to have snow tires. These tires are not the tires of old.
    The tires of the 70s were just a more aggressive tread design. Now we have tires with much more technical expertise put into their construction. Different materials that they are made of to make them better on ice, wet and snow. Tread design that is no where near the old 70s models.
    Its a new world out there and the snow tire prevents the slipping, sliding, and spinning of the old days. All weather tires are rarely all weather. Wet and dry certainly but there is nothing better than a new-fangled snow tire these days. They turn the Prius into its own SUV....who needs the gas guzzling, tippy, passe vehicle.
    Can you tell....I did the SUV thing.....and think they are and should be on their way out!
    And there are lots of people using snow tires these days....the fact that they sell as many as they do kinda says it all.

    Good luck in the snow whatever you are driving.:D:D
     
  18. jayman

    jayman Senior Member

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    You mean "quirkyness"

    A bargain in Canada, compared to a Range Rover HSE, or similar imports

    A co-worker has a Mercedes R-350, the model with the V6 turbodiesel. He's lucky to get 35 mpg on the highway

    I'm not sure what Mercedes calls the R, but I call it a Large Station Wagon. Very solid feel to the car, especially when you close the doors. He ordered his with the optional DC Airmatic, which has air suspension at all four wheels

    I don't think he can adjust the ride height, but the car may automatically lower itself at higher speeds. The air suspension really soaks up the frost heaves, potholes, and other surface problems
     
  19. jayman

    jayman Senior Member

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    The SUV or pickup may be able to accelerate faster on all season tires by having four wheel drive, but they won't corner any better, and won't stop any faster

    I run four studded snow tires on my FJ
     
  20. Tideland Prius

    Tideland Prius Moderator of the North
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    True and a bargain compard to the LX570.


    They call it a Grand Sport Tourer (GST) with the B-Class just a regular "Tourer".

    The R-Class has THE largest single piece moving glass roof I've ever seen. It's panoramic roof but it's only made up of two panes of glass :eek:. Most moonroofs of that size will have multiple panes.

    It's also one of the rare vehicles that I feel comfortable in the 3rd row.

    35mpg ain't bad.... if you knew what the regular V6 and V8 models make... not to mention the R55 AMG lol