My wife’s IS350 has the typical abnormal wear on the front tires. Dealer says to replace them. I wanted to get some thoughts as I still have solid depth although the middle tread wore quick. I am fine replacing but wanted to get some opinions.

 

There's a stickied thread at the top talking about inner tire wear. Honestly, that's cutting close.. I'm sure a lot of people are going to say replace but I think you got a couple hundred miles more. You need to get upgraded bushings to reduce it.

Option 1:
Lexus OEM RCF/GSF bushings are direct swaps which have a stiffer rubber compound to prevent toeing out under braking and driving conditions

Option 2:
FIGS / RR Racing polyurethane bushings which are signifantly more stiff / track oriented so there is more noise / vibration (some people say there isn't but since this is for your wife, I'm sure she wouldn't want bushings this aggressive) but you could

On top of that, for the alignment, toe in the front to +0.08 which is what I do and toe in the rears (not exactly sure but maybe 0.1 on both sides?). My rears don't wear as much as the fronts. Hope that helped.

What year is her car btw?

 

I agree with swaangin, the inner treads are getting very low, and there's an area that's clearly bald.

You may want to see this thread: https://www.clublexus.com/forums/is-...tire-wear.html

 

it is a 2015 is350. I am just going to get some new tires on order. She doesn’t put many miles on it (there is only 25k now) so the bushings have been on my mind but…

 

You should get them (RCF/GSF), they're cheap and easy to install. Some mechanics might think it's more involved but it's direct swap and takes less than 30 minutes to do and it'll save you a lot of money in the long run for tires.

I have a 2015 IS250 and I was suffering from this as well (before I got the springs installed).