All about Lexus IS premature inner tire wear
#301
drives cars
Thread Starter
As for what was updated, it was a lot of the suspension components, especially in front. They went to fully aluminum control arms in the front as well as pilfering the "swing-valve" dampers from the ES 350. Also, the wider wheels and tires will have some effect on the inner wear - what effect remains to be seen.
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DS03 (05-06-22)
#302
Hey guys, I'm going to try and address the premature inner tire wear soon on my 2015 Lexus IS 250 F Sport AWD. The wear is worse on the rear tires than the front. Based on my understanding thus far, the LCA bushings would help with the front and the replacing the camber would help with the back tires. Am I understanding that correctly?
These are the bushings I found from RR racing, are these the correct ones?
https://www.rr-racing.com/Lexus-Lowe...isfxlca002.htm
Would this be the correct camber for the rear?
https://www.rr-racing.com/SPC-Perfor...r.spc72450.htm
These are the bushings I found from RR racing, are these the correct ones?
https://www.rr-racing.com/Lexus-Lowe...isfxlca002.htm
Would this be the correct camber for the rear?
https://www.rr-racing.com/SPC-Perfor...r.spc72450.htm
#304
Sponsor
iTrader: (1)
Hey guys, I'm going to try and address the premature inner tire wear soon on my 2015 Lexus IS 250 F Sport AWD. The wear is worse on the rear tires than the front. Based on my understanding thus far, the LCA bushings would help with the front and the replacing the camber would help with the back tires. Am I understanding that correctly?
These are the bushings I found from RR racing, are these the correct ones?
https://www.rr-racing.com/Lexus-Lowe...isfxlca002.htm
Would this be the correct camber for the rear?
https://www.rr-racing.com/SPC-Perfor...r.spc72450.htm
These are the bushings I found from RR racing, are these the correct ones?
https://www.rr-racing.com/Lexus-Lowe...isfxlca002.htm
Would this be the correct camber for the rear?
https://www.rr-racing.com/SPC-Perfor...r.spc72450.htm
Looks good.
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arentz07 (07-12-22)
#305
drives cars
Thread Starter
I just wanted to say, I am at nearly 14,000 miles on my 2021 IS 350 and have measured the tread depths. I run cold tire pressures according to the door placard (35 front, 36 rear).
I noticed a little bit of uneven wear in the rear tires, specifically in the center of each tire (not the inner edge as you'd see with the fronts). I generally was at 35 or 36 cold, so I could chalk this up to the camber of the rear wheels. The measurements were 6/32" on the outer tread blocks of the rear tires, and 5/32" in the middle.
The front tires looked outstanding. I measured 6/32" all the way across. The innermost edge looked at worst marginally more worn than the outside, but I think it's a notable improvement compared to my 2016.
I noticed a little bit of uneven wear in the rear tires, specifically in the center of each tire (not the inner edge as you'd see with the fronts). I generally was at 35 or 36 cold, so I could chalk this up to the camber of the rear wheels. The measurements were 6/32" on the outer tread blocks of the rear tires, and 5/32" in the middle.
The front tires looked outstanding. I measured 6/32" all the way across. The innermost edge looked at worst marginally more worn than the outside, but I think it's a notable improvement compared to my 2016.
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BBQapple (04-25-23)
#306
I just wanted to say, I am at nearly 14,000 miles on my 2021 IS 350 and have measured the tread depths. I run cold tire pressures according to the door placard (35 front, 36 rear).
I noticed a little bit of uneven wear in the rear tires, specifically in the center of each tire (not the inner edge as you'd see with the fronts). I generally was at 35 or 36 cold, so I could chalk this up to the camber of the rear wheels. The measurements were 6/32" on the outer tread blocks of the rear tires, and 5/32" in the middle.
The front tires looked outstanding. I measured 6/32" all the way across. The innermost edge looked at worst marginally more worn than the outside, but I think it's a notable improvement compared to my 2016.
I noticed a little bit of uneven wear in the rear tires, specifically in the center of each tire (not the inner edge as you'd see with the fronts). I generally was at 35 or 36 cold, so I could chalk this up to the camber of the rear wheels. The measurements were 6/32" on the outer tread blocks of the rear tires, and 5/32" in the middle.
The front tires looked outstanding. I measured 6/32" all the way across. The innermost edge looked at worst marginally more worn than the outside, but I think it's a notable improvement compared to my 2016.
#307
Wow! May Be Time To Look At Another Vehicle
Hey everyone...just finished bouncing through this inner tire tread wear thread and it's totally busted any plan I have of getting a 3rd gen IS. I had a 2007 and never had any issues with uneven wear. I've been thinking about getting back into an IS 250/350 but after seeing how much of an issue tires are...I think it might be time to give up. I guess this explains why one of the car fax reports on a potential purchase showed several tire replacements at like 10k and 20k. Geez...I'm kind of beside myself...but glad I found out before I got stuck with a car that chews up tires.
#308
drives cars
Thread Starter
Hey everyone...just finished bouncing through this inner tire tread wear thread and it's totally busted any plan I have of getting a 3rd gen IS. I had a 2007 and never had any issues with uneven wear. I've been thinking about getting back into an IS 250/350 but after seeing how much of an issue tires are...I think it might be time to give up. I guess this explains why one of the car fax reports on a potential purchase showed several tire replacements at like 10k and 20k. Geez...I'm kind of beside myself...but glad I found out before I got stuck with a car that chews up tires.
#309
And, just get replacement LCA bushings, and forget about it.
#310
I appreciate the suggestion. I'm strictly stock - if it doesn't work right from the factory then it's not for me....just my preference....much respect to those who like to go after market though.
#311
drives cars
Thread Starter
FWIW, I've got almost 15k miles on my 2021 and haven't seen any inner wear issues yet. So maybe a 2021+ will be in your future.
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Pnthrzrule (10-12-22)
#313
Fair enough....went and test drove a 2015 - 350....blew my mind....I think I'll try and start with new rubber, and verify that the suspension/wheels are set properly as a condition of purchase. Gotta find the right color scheme tho!
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arentz07 (10-20-22)
#314
I wanted to give a shout out to the guys at RR Racing. Just got my bushings and rear cambers installed, and my 2015 Lexus IS250 is driving amazing. Thanks for the great service.
Below is the current alignment settings for my IS. Does anyone recommend adjusting my rear cambers? I know the bushing/camber replacements from RR racing will solve the premature inner tire wear, but I'm not sure if I should adjust my alignment as well. The settings below are supposed to be factory specs according to the shop that did the previous alignment.
Below is the current alignment settings for my IS. Does anyone recommend adjusting my rear cambers? I know the bushing/camber replacements from RR racing will solve the premature inner tire wear, but I'm not sure if I should adjust my alignment as well. The settings below are supposed to be factory specs according to the shop that did the previous alignment.
#315
Driver School Candidate
Installed my Michelin Pilot Sport AS4's back in January of 2021 for $710 from Costco for all four.
27k miles later, I just replaced the fronts. Mindful, the fronts were absolutely destroyed when I replaced them, less than 1/32 tread life imo.
Rears are still holding up well, no exposed metal and about 7/32 left. Should hold up fine for the upcoming winter.
This was also about 85% highway miles, spirited driving more often than not, and an average of 21 mpg give or take depending on how heavy my foot was on the gas.
NY roads take a toll on tires, I also installed the OEM Bushings back in Jan 2021.
Haven't ever done an alignment, maybe I'll get one done now and compare stats in time.
Next up, differential and transmission fluid flush.
27k miles later, I just replaced the fronts. Mindful, the fronts were absolutely destroyed when I replaced them, less than 1/32 tread life imo.
Rears are still holding up well, no exposed metal and about 7/32 left. Should hold up fine for the upcoming winter.
This was also about 85% highway miles, spirited driving more often than not, and an average of 21 mpg give or take depending on how heavy my foot was on the gas.
NY roads take a toll on tires, I also installed the OEM Bushings back in Jan 2021.
Haven't ever done an alignment, maybe I'll get one done now and compare stats in time.
Next up, differential and transmission fluid flush.