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I got 50000 miles out of the OEM Bridgestones, recently replaced all 4 tires with Michelin PS AC3+ and got an alignment 2 days later, I'm currently at 4000 miles (7 months later) and have significant feathering on the inner lip of the front tires and bad road noise. I had my alignment checked today and its still in spec, steering components and suspension were all good as well. Shop that looked at them was baffled by these findings and only feedback was the fact that my replacement tires are Y rated rather than W rated that is recommended.
Where should I go from here? Do you think Michelin will replace them under warranty or contest the findings. Has anyone else experienced such quick wear on tires with this car?
This topic has been beaten to death since the 2006 IS. The issue is the lower control arm #2 bushings. They are too soft and deflect causing the tires to toe out under load and eat the inner edge of the tire. The fix is replacing them with either Lexus RC-F, Figs Engineering or RR Racing LCA bushing. The RC-F rubber bushings are the cheapest and softest with the Figs and RR Racing being significantly more rigid polyurethane components. The poly bushings will increase steering feel and accuracy at the expense of noise and vibration. The RC-F bushing are just ever so slightly stiffer and feel much like stock.
There are numerous threads about these bushings in this and the suspension sub-forum.
I'd also note that Y-rated should be an improvement over W-rated as far as performance goes. It should have no bearing on wear though really.
When you say "in spec", that is fine, but it's important to note a few details. This car has soft lower control arm bushings, which means any sort of load placed on the front wheels will cause them to toe-out. If your front toe is even a little out, it will cause significant wear. So you have a couple of options to mitigate this:
Replace the lower control arm bushings with something firmer.
Options include FIGS, RR Racing, and OEM RC F bushings.
Add more toe-in in order to compensate for the toe-out caused under load.
Honestly, if your OE tires (somehow) lasted 50,000, and you just got an alignment, that would seem to be the variable here. I wouldn't trust it. Do you have the alignment sheet?
When you say "in spec", that is fine, but it's important to note a few details. This car has soft lower control arm bushings, which means any sort of load placed on the front wheels will cause them to toe-out. If your front toe is even a little out, it will cause significant wear. So you have a couple of options to mitigate this:
Replace the lower control arm bushings with something firmer.
Options include FIGS, RR Racing, and OEM RC F bushings.
Add more toe-in in order to compensate for the toe-out caused under load.
Honestly, if your OE tires (somehow) lasted 50,000, and you just got an alignment, that would seem to be the variable here. I wouldn't trust it. Do you have the alignment sheet?
Yes I have both alignment sheets(2 days after new tires and today which is 7 months post new tires)
There are most definitely not “lots of threads” where members get 50,000 miles out of the first set of tires then the next set wears on the edges rapidly.
There are most definitely not “lots of threads” where members get 50,000 miles out of the first set of tires then the next set wears on the edges rapidly.
Do you think you are being helpful by replying to a four-year-old thread?
I've been reading through this forum and have found it very informative. Unfortunately, I'm here to report that the problem still exists on a 2022 Lexus IS 350 F Sport. I drove my car off the show room floor. I made it to 12,500 miles on the stock Bridgestone before the inner fronts were wore bald and cutting into the next layer of the tire. Rears wore normal and the fronts were even wear except for the inside.
I had new Michelin AS4's installed today and had the tire shop do an alignment check. To my surprise the car was not out of alignment and that's what led me to this forum. It looks like some folks are reporting they haven't had the problem with the new model.
I got a 2023 IS350. New and drove it 1-2000 miles and brought it to dealer to check the alignment. Sure enough it was off. It s almost always off in my experience. Dealer did complementary alignment. Now that I KNOW the alignment numbers I got and if these wear too fast I m going in the same direction you are. I don t think there s any difference between the 22 and 23.
I've been reading through this forum and have found it very informative. Unfortunately, I'm here to report that the problem still exists on a 2022 Lexus IS 350 F Sport. I drove my car off the show room floor. I made it to 12,500 miles on the stock Bridgestone before the inner fronts were wore bald and cutting into the next layer of the tire. Rears wore normal and the fronts were even wear except for the inside.
I had new Michelin AS4's installed today and had the tire shop do an alignment check. To my surprise the car was not out of alignment and that's what led me to this forum. It looks like some folks are reporting they haven't had the problem with the new model.
I got a 2023 IS350. New and drove it 1-2000 miles and brought it to dealer to check the alignment. Sure enough it was off. It s almost always off in my experience. Dealer did complementary alignment. Now that I KNOW the alignment numbers I got and if these wear too fast I m going in the same direction you are. I don t think there s any difference between the 22 and 23.
I prefer pref.12 toe in the front to help with the tire wear, rear is at .08-.10 for the same reason.
There are most definitely not “lots of threads” where members get 50,000 miles out of the first set of tires then the next set wears on the edges rapidly.
You got fortunate but the issue is old and won't change with 3rd gen, it has been covered a lot the past few years and I have been following the issue which lead me to go with the RR Racing LCA bushing remedy.
My stock tires were ok by the time I switched the bushings, but my old winters were ruined by this issue.
05-30-19 | 10:37 AM
Inner Tire Wear IS350 F sport
