Originally Posted by Fizzboy7

A mystery in stock tire wear: 2020 vs. 2023.

My new 2020 IS350 F-Sport RWD with limited slip differential, came with Bridgestone Turranzas. I got 33.5k out of them, before handing the car back into the dealer at the lease end.
The new 2023 IS350 F-Sport RWD without the LSD, came with Bridgestone Potenzas. I am now at 13.5k, and they are looking more than half gone. I'm estimating probably to 20k miles and they'll be done.

So, a marked difference between either the tires or between the cars. Of course my driving style has not changed and I'm always easy on it. Only difference I can think of is I've done more streets with the 2023 than freeway, compared to the 2020. But I always thought the higher speeds of a freeway wear tires out quicker- more compression over dips at higher speeds (I could be wrong). Or perhaps the limited slip actually plays a roll? Looking back at the 2020, I could barely recall any times where entered a turn and accelerated hard enough to activate the limited slip. So thinking that can't be a big factor. Again, I could be wrong.

Curious to hear people's opinion.

Originally Posted by kj07xk

It’s between the tires. Turanza is a touring tire and will last longer than the Potenza performance tire.

Originally Posted by NYIS300awdFS

I’m new to the IS platform and to the website. Thank you for the stickie and all the information. I had not come across the premature tire wear issue during my car shopping research, it’s a turnoff to see what people here are going thru. I just got my 2017 IS300 awd f sport and it came with two different brand tires, now I understand why. I’ve read thru this thread and decided to go ahead and order the RCF bushings, found them on eBay from a vendor in Japan. They are supposed to be genuine oem parts, hopefully they are not fake. I come from the Subaru world, tires are cheaper than engines but at the rate the is consumes tires it might cost the same as an engine replacement every 5-6 years. I do a lot of my mechanical work, replacing the bushings looks easy.

Ended up canceling the RCF bushing order and went to the RR Racing system instead. The reason I didn’t go with Figs is after watching multiple videos I liked the way the RR Racing system works. The Figs bushing seems to have a similar amount of thrust movement to the oem bushings. RR racing designed the usrs with a bushing preload mechanism that allows adjustments to minimize the thrust movement. I went with their recommended black bushing for an awd vehicle. Now I’ll be easy on the brakes and corners till the stiffer bushings are installed.

Finally got the RR Racing bushings installed, not a difficult job.
My first impression is that the parts look very well made, shall see about durability. They came pre greased and include excellent installation instructions. RR Racing recommended the 85d black bushing for my awd vehicle, that’s what I installed. My first impression is that I could immediately feel the firmer bushings, after a 20 minute drive I concluded that they actually complement the car and they should’ve been like that from the factory.

Went out tonight and put 50 miles on the car to settle the bushings and get a better understanding as to what they perform like.
First and most important is that the front end communicates to the steering wheel an immense amount of positive feedback that was numb before.
Tracking was marshmallowish before, now it feels stout in a very positive way.
Steering response is sharpened in a very significant and positive way.
As to how they impact tire wear I have no way of knowing but don’t even care anymore, the firmer bushings are transformative in a very positive way.
As to harshness from riding on a stiffer bushing seems to be not a factor, the bushing feels natural to the car, there is a very likeable feel that is surprising.
In conclusion, I feel the car could have come with the firmer bushing from the factory, it feels natural to the platform, with significant performance enhancement implications. Not exactly an inexpensive upgrade but also not that expensive. Worth every penny, wow.

Originally Posted by Arthall111

Originally Posted by blackangus

Recently bought a 2020 IS 300 AWD with less than 12k miles on it. Now, with less than 15k miles, the tires are shot. Wish I'd known about this problem before I bought it. Definitely lessens my opinion of Lexus (after owning 4 largely trouble-free models). No way I'm going to replace tires every 15k miles - that's ridiculous. I'm reading this thread back to front - hope I find an affordable, doable solution! Thanks to everyone who contributes.