1. The site is migrating to a new server this week, so there will likely be some downtime during that process. You can follow along here for updates.

Bridgestone ECOPIA EP422 PLUS: Very Squirrely

Discussion in 'Gen 3 Prius Main Forum' started by tomfcb, Apr 20, 2019.

  1. tomfcb

    tomfcb Junior Member

    Joined:
    Apr 19, 2019
    16
    11
    0
    Location:
    Scottsdale, AZ
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    These tires replaced Michelin Defenders on my 2012 PIP. They are much smoother/quieter. MPG seems about the same, but it's only been a week. Around town they are great, but at freeway speeds they are all over the place and do not want to track a straight line. Car serviced two weeks ago and I was told the alignment looks fine. Tire guy at Costco said the same.

    Any chance this will get better? Purchased at Costco, so I assume they're returnable for the first 30 days.

    (xposted in Plug In thread)
     
    #1 tomfcb, Apr 20, 2019
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    105,241
    47,754
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    what pressures are you running?
     
    #2 bisco, Apr 20, 2019
    RMB and Mendel Leisk like this.
  3. tomfcb

    tomfcb Junior Member

    Joined:
    Apr 19, 2019
    16
    11
    0
    Location:
    Scottsdale, AZ
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    Not sure. Haven't checked since they were installed. Any recommendations?
     
    #3 tomfcb, Apr 20, 2019
    bisco likes this.
  4. Mendel Leisk

    Mendel Leisk Patron saint of newly poured sidewalks

    Joined:
    Oct 17, 2010
    52,394
    37,042
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    There are three versions of the Ecopia EP422 Plus, made in Japan, USA and Mexico. They all have distinct tread pattern, and various specs (wear index, max pressure, for example) are different.

    What does it say on the sidewall; what's the country of origin? Check all four too: someone here, a few years back, managed to get two US and two Mex when he bought.
     
    #4 Mendel Leisk, Apr 20, 2019
    Bay Stater, RMB and amos like this.
  5. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    105,241
    47,754
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    factory specs are on the drivers door jamb. many here run much higher. mine are 42f/40r, experiment.
     
    #5 bisco, Apr 20, 2019
    Bay Stater likes this.
  6. High Mileage

    High Mileage Active Member

    Joined:
    Nov 25, 2016
    135
    231
    0
    Location:
    California
    Vehicle:
    2018 Prius Prime
    Model:
    Prime Advanced
    Tom, I am on my 4th set of the Bridgeston Ecopia series tires. First set was the 420's I think, since then 3 sets of the 422 series. All were installed at Costco and running the stock pressure noted on the door pillar, around 32psi as I recall. Previous tires were goodyear assurance. Never noted any issues with control of the vehicle with the Bridgestone tires so hopefully this will pass for you.
     
    #6 High Mileage, Apr 21, 2019
    Bay Stater likes this.
  7. Mendel Leisk

    Mendel Leisk Patron saint of newly poured sidewalks

    Joined:
    Oct 17, 2010
    52,394
    37,042
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Bridgestone Ecopia EP20 are worth considering. They come only in 195/65R15, and as far as I know there's only one version. I had a couple of sets of those, no problems, apart from them getting noisy, and really a menace in any amount of snow once worn.

    OP has a couple of threads going btw, same subject. Kinda frustating, but oh well.
     
    #7 Mendel Leisk, Apr 21, 2019
    Johnny Cakes, bisco and Bay Stater like this.
  8. tomfcb

    tomfcb Junior Member

    Joined:
    Apr 19, 2019
    16
    11
    0
    Location:
    Scottsdale, AZ
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    Why is that frustrating? I mentioned in in the post. This forum gets way more views that the Plug In forum, where I posted originally and got very few views/responses. AND I REALLY WANT INPUT FROM PEOPLE WHO MIGHT HAVE SOMETHING USEFUL TO SHARE, LIKE YOU.
     
    #8 tomfcb, Apr 21, 2019
    Mendel Leisk likes this.
  9. Mendel Leisk

    Mendel Leisk Patron saint of newly poured sidewalks

    Joined:
    Oct 17, 2010
    52,394
    37,042
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    It would be better to report your post (button at bottom of posting) and ask the moderators to move it. That said, most viewers just view any and all forums.

    The frustration, comes from having two threads on same subject. One invariably gets orphaned, and responses ignored.

    Which reminds me, again: what are the country of origin of your tire (should be on sidewall)? And please check all four, hopefully all are from same country.

    I asked this before, in this thread, or the other.
     
    #9 Mendel Leisk, Apr 21, 2019
    Last edited: Apr 21, 2019
    Johnny Cakes likes this.
  10. tomfcb

    tomfcb Junior Member

    Joined:
    Apr 19, 2019
    16
    11
    0
    Location:
    Scottsdale, AZ
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    If I looked this up correctly, looks like all 4 tires were made in North Carolina. (Figuring that out is not straight forward at all!)
     
    #10 tomfcb, Apr 21, 2019
  11. Mendel Leisk

    Mendel Leisk Patron saint of newly poured sidewalks

    Joined:
    Oct 17, 2010
    52,394
    37,042
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    It says that on the sidewall?
     
    #11 Mendel Leisk, Apr 21, 2019
  12. tomfcb

    tomfcb Junior Member

    Joined:
    Apr 19, 2019
    16
    11
    0
    Location:
    Scottsdale, AZ
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    No. As best as I can figure, it's based on the code after the DOT. It's 0BAE. 0B refers to the factory in NC. That's all I could come up with. I could be completely wrong. I couldn't see anything like "Made in USA" on the tires.
     
    #12 tomfcb, Apr 21, 2019
    Mendel Leisk likes this.
  13. Mendel Leisk

    Mendel Leisk Patron saint of newly poured sidewalks

    Joined:
    Oct 17, 2010
    52,394
    37,042
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Hmm. Usually it's on there in plain English. There's a lot of text on those sidewalls.

    Truth be told, not sure where I'm going with this, lol.
     
    #13 Mendel Leisk, Apr 21, 2019
  14. tomfcb

    tomfcb Junior Member

    Joined:
    Apr 19, 2019
    16
    11
    0
    Location:
    Scottsdale, AZ
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    Super impressed with Costco tire people! They could not have been nicer or more helpful. They didn't have Michelin Energy Saver AS in stock when I went today, but will get a set by tomorrow. Hopefully I'll be in them by the weekend. I'll report back.
     
    #14 tomfcb, Apr 24, 2019
    bisco and RMB like this.
  15. snarfu

    snarfu Junior Member

    Joined:
    Dec 29, 2019
    21
    23
    0
    Location:
    Pennsylvania
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    I got a set recently and they were a bit squirrelly. I am just about done with a long trip and they seem a bit better. I have lost some mpg compared to the nano A29. My best guess is 5 mpg.

    Forgot to add, the way it felt to Mee was the car was being blown by the wind, except there was no wind.
     
    #15 snarfu, Jan 8, 2020
    Last edited by a moderator: Jan 8, 2020
(You must log in or sign up to post here.)
Loading...
Similar Threads - Bridgestone ECOPIA EP422
  1. markjosh51

    Bridgestone ecopia 422 plus road noise

    markjosh51, Dec 2, 2019, in forum: Gen 3 Prius Main Forum
    Replies:
    8
    Views:
    6,180
    bassically_eli
    Sep 9, 2023
  2. Jon Watkins

    Michelin Energy Saver, Goodyear Fuel Max or Bridgestone Ecopia?

    Jon Watkins, May 30, 2018, in forum: Gen 3 Prius Main Forum
    Replies:
    56
    Views:
    24,262
    Mendel Leisk
    Oct 5, 2019
  3. wliangy

    Bridgestone Ecopia EP20 or EP422 plus for 2010 Prius?

    wliangy, Jul 25, 2017, in forum: Gen 3 Prius Main Forum
    Replies:
    45
    Views:
    21,831
    Mendel Leisk
    Mar 2, 2019
  4. arolswim

    New tires for 2010 Prius

    arolswim, Jan 13, 2017, in forum: Gen 3 Prius Main Forum
    Replies:
    12
    Views:
    9,607
    tonycd
    Feb 4, 2017
  5. bfguilford

    Bridgestone Ecopia E20 tires and WINTER

    bfguilford, Jul 2, 2010, in forum: Gen 3 Prius Main Forum
    Replies:
    3
    Views:
    5,288
    jayman
    Jul 3, 2010