Proper Tire pressure makes a difference
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Lexus Champion
Joined: Oct 2019
Posts: 19,719
Likes: 3,768
From: California
This Saturday we were invited to a friends house for dinner, they live about 45 miles from us so decided to take the IS. It seemed to be a bit off, so on Sunday I checked the tire pressure, and two tires were about 1lbs off (passenger side front and drivers side back). Corrected the tire pressure, and now all is right as rain! I don't really notice anything on my other cars unless the pressures are way off, so I guess the staggered config is highly sensitive to tire pressures being off. Another reason to check your tire pressure weekly
Just inflated 38 up front from 33
Rears up 38 from 36
I like the way the steering wheel feels now. I’m really hoping to get 60k out of this set of tires this time around.
This thread along with this forum and everybody contributing has helped me a lot trying to fine tune the Lexi. 🤜🏽🤛🏽
Rears up 38 from 36
I like the way the steering wheel feels now. I’m really hoping to get 60k out of this set of tires this time around.
This thread along with this forum and everybody contributing has helped me a lot trying to fine tune the Lexi. 🤜🏽🤛🏽
Higher pressures also reduce available traction during hard braking, cornering, and wet surfaces... Keep those in mind as everything is a trade off...
If I had to guess, the low numbers up front suggested by OEM is for safety vs tire wear or vehicle performance.
Glad this thread was helpful. BTW, RWD IS350, don't drive on wet or icy roads with the nannies turned off! It was raining this morning, I was a bit nostalgic about the days when TC didn't exist, so I turned off said technology. Even with super grippy Michelin Pilots the rear didn't want to behave just going a bit down on the pedal, especially in turns. Reminded me of my fathers 79 Buick LeSabre with it's 350, which I spun plenty of times in my more youthful days! Nannies back on, all was well again. I have to stop remisensing my younger stupider years...
Last edited by 2013FSport; May 1, 2021 at 10:35 AM. Reason: Braking vs breaking...
Thread Starter
Lexus Champion
Joined: Oct 2019
Posts: 19,719
Likes: 3,768
From: California
Just to forewarn - higher pressures in the rear make it real easy to blow the center section out, especially if you spin them on occasion. Assuming most want >35k or more....
Higher pressures also reduce available traction during hard breaking, cornering, and wet surfaces... Keep those in mind as everything is a trade off...
If I had to guess, the low numbers up front suggested by OEM is for safety vs tire wear or vehicle performance.
Hopefully the Buick incident wasn't this bad...click>> Borrowed dad's car.
Higher pressures also reduce available traction during hard breaking, cornering, and wet surfaces... Keep those in mind as everything is a trade off...
If I had to guess, the low numbers up front suggested by OEM is for safety vs tire wear or vehicle performance.
Hopefully the Buick incident wasn't this bad...click>> Borrowed dad's car.
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