IS - 3rd Gen (2014-present) Discussion about the 2014+ model IS models

Inner Tire Wear

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Old May 18, 2023 | 07:18 AM
  #16  
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Originally Posted by nitroracer
Hmm. I've never had that experience. Although, I'm running Michelin PS4S with aftermarket brake pads.
Brake pads - no. Tires - maybe. Maybe you haven’t done a fast emergency deceleration from a high speed? The post just above yours also has the wandering issue.
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Old May 18, 2023 | 07:29 AM
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Originally Posted by TipsyTonio
Also, I see no mention on the product page of greasing this bushing. Is it recommended that we grease them like the FIGS, and if so, how often and what grease do you recommend? … I have been holding out on swapping LCA bushings because I am not entirely sold on having to grease the bushing constantly.
The RRR bushings also require grease. Both the FIGS and RRR bushings come with grease to use when installing.
For my FIGS, I did get an embarrassing squeak on slow, sharp, left hand turns, a short while after installing them. But instead of removing and regreasing, I got some silicone spray, and hit them well from all directions. That was probably four years ago, and no squeaks or squeals since.
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Old May 19, 2023 | 06:38 AM
  #18  
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Originally Posted by kj07xk
Brake pads - no. Tires - maybe. Maybe you haven’t done a fast emergency deceleration from a high speed? The post just above yours also has the wandering issue.
Well if we're going to be a stickler, please quantify "fast" + "emergency" +"deceleration" + "high speed". I've encountered a lot of a**holes over the 106,000 miles I've put on my car. It's quite competent. It's never been so bad that I've caught myself saying, "gee, I wish I had poly bushing". The combination of EBC yellow + Michelin PS4S + Sport+ mode makes for some fun driving.
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Old May 19, 2023 | 07:22 AM
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Originally Posted by nitroracer
Well if we're going to be a stickler, please quantify "fast" + "emergency" +"deceleration" + "high speed". … It's never been so bad that I've caught myself saying, "gee, I wish I had poly bushing".
If/when it happens, those won’t be the first words out of your mouth. It’s the moment you think you’re going to be that guy’s proctologist. Not braking hard enough to trigger the ABS, but just about. See you’re also in IL. For me, these events have happened on I-39, heading south from Rockford. Sleepy, long straight stretch of highway. Usually quite empty, easily running 85-95 for long stretches with great visibility (when totally empty, and hooligan mode kicks in, you can really open it up ).
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Old May 19, 2023 | 07:57 AM
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Would this also work if i have inner and outer wear? or do i just need alignment inside thread is fine... has about 20k miles on it and i do sometimes drive the car heavy i have a 22 is350 fsport..
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Old May 19, 2023 | 08:08 AM
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Originally Posted by holmanr86
Would this also work if i have inner and outer wear? or do i just need alignment inside thread is fine... has about 20k miles on it and i do sometimes drive the car heavy i have a 22 is350 fsport..
Confusing, you say you have inner and outer wear, but then say the inner is fine. If it’s just outer wear, then try an alignment, sounds like too much toe-in.
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Old May 19, 2023 | 08:15 AM
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SORRY, so what i meant to say is that i have inner wear and outer wear but the thread in the middle is fine, like if i were to keep this tires they would last me another year or so, but sense the inner and outer thread is being used up faster then i will have to get new front tires.. my question was will that RR RACING bushing work to solve this issue or do i just need a alignment..
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Old May 19, 2023 | 08:46 AM
  #23  
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Originally Posted by holmanr86
SORRY, so what i meant to say is that i have inner wear and outer wear but the thread in the middle is fine, like if i were to keep this tires they would last me another year or so, but sense the inner and outer thread is being used up faster then i will have to get new front tires.. my question was will that RR RACING bushing work to solve this issue or do i just need a alignment..
Usually an indication of under inflating the tires. Add some air.
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Old May 19, 2023 | 09:23 AM
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Originally Posted by DS03
Usually an indication of under inflating the tires. Add some air.
My tire meter in my dash tells me all the tires have the same tire pressure, i don't think that's the issue. In my last oil change LEXUS told me i needed two front new tires with a alignment, in my head i thought ( I can still drive with these tires little longer.. )
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Old May 19, 2023 | 11:36 AM
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Originally Posted by holmanr86
My tire meter in my dash tells me all the tires have the same tire pressure, i don't think that's the issue. In my last oil change LEXUS told me i needed two front new tires with a alignment, in my head i thought ( I can still drive with these tires little longer.. )
In that case, get an alignment. Maybe you have excessive toe-in (outer tire wear), and inner wear from the bushings.
Start with the alignment, and see if it’s off. Otherwise, I’d agree with the under inflation comment above. Are you running the same size tires, with the tire pressure as printed on the door placard? If not, you may need to adjust. When I went from 19” wheels to 20” on my other car, I needed to increase the tire pressure up 3 PSI, all around (front and rear PSIs are different on that car).
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Old May 19, 2023 | 12:13 PM
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yes i am running the same oem size tire that came with the car and rim brand new haven't messed with them sense i purchased them and the air is how it should be on PSI, ill move forwards get new tires and get it aligned see if that fixes the issue



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Old May 20, 2023 | 04:47 AM
  #27  
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Originally Posted by kj07xk
If/when it happens, those won’t be the first words out of your mouth. It’s the moment you think you’re going to be that guy’s proctologist. Not braking hard enough to trigger the ABS, but just about. See you’re also in IL. For me, these events have happened on I-39, heading south from Rockford. Sleepy, long straight stretch of highway. Usually quite empty, easily running 85-95 for long stretches with great visibility (when totally empty, and hooligan mode kicks in, you can really open it up ).
Maybe 2014 MY is different, but I haven't had that problem. Also, I wasn't aware that poly bushings could increase stopping power
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Old May 20, 2023 | 04:48 AM
  #28  
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Originally Posted by holmanr86
yes i am running the same oem size tire that came with the car and rim brand new haven't messed with them sense i purchased them and the air is how it should be on PSI, ill move forwards get new tires and get it aligned see if that fixes the issue

What's going on with these tires? You drive on gravel/dirt roads or something?
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Old May 22, 2023 | 08:27 AM
  #29  
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Originally Posted by TipsyTonio
@RRRacing maybe I am misinterpreting the graphic or the product page, but the graphic says R&T version has 90D bushing, whereas the product page says "Extremely tough 95A durometer polyurethane bushing". Please correct me if I'm wrong. Also, I see no mention on the product page of greasing this bushing. Is it recommended that we grease them like the FIGS, and if so, how often and what grease do you recommend? I have a 2022 IS350 DHP and the only thing I hate about the car is that when I brake hard, the car goes on a little field trip wandering all over the pavement. Fortunately I do not have front inner tire wear so my intent is not so much to address that common issue, but rather that wandering. I do however have rear inner tire wear which my Lexus dealer basically told me is unfixable with stock parts since the rear camber arms aren't adjustable and the factory spec calls for negative camber in the rear. But alas I digress. I have been holding out on swapping LCA bushings because I am not entirely sold on having to grease the bushing constantly. I assume if it needs to be greased, I'd basically have the remove the bolt, grease the bolt, reinstall, and align it once again? Please excuse my noobness. Thank you.

Go by the chart quoted in my message. I personally checked them on my own Sure A durometer tool before making it. I like to be factually accurate when providing potential customers with information. The website listing was made around 2016 long before my time here so i'm not sure how they got that number.

Yes, They come pre-greased. You should not have to think about a regrease for at least 2 years. Many people never do to be honest. All cars may be different. It's not hard to do. I've seen people even spray silicone spray at it and that's good for another few years (someone below did that as well).

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Old Jun 3, 2024 | 07:22 AM
  #30  
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Question for those that installed the LCA bushing to resolve the front tire wear issue. How long would this normally take? I am thinking of taking it to my local shop to install them, while they will also be replacing my front rotors/brakes. One shop quoted me 4.5 hours (just for installing the lower control arm). Somehow I felt this quote was excessive.
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