bought a 2015 is 350 f sport new...now has 25,400 miles. Discount tire saying I need new tires and they are really worn ( down to secondary rubber they said)....how could my tires be worn that much? At what point did y'all switch out factory tires for new ones? The factory ones are Dunlop..any help much appreciated.

 

Im not expert on tires but i will share what i usually do.

I use the tires until the tires lines become close to disappear, then i change them.

if you are planing to change, i would say go with Yokohama, they have run flat tier its called ADVAN SPORT Z.P.S.

 

Once you start getting close to the wear indicators I circled below. I wouldn't let the treads get as low as in that pic, but you get the idea. You would probably notice reduced performance in rain/snow when the tire tread starts getting close to those tread wear points.

If you have any uneven wear paterns (outer edge, center, or tire tread cracking/break down) you would need to change them also. These things also indicate other issues like alignment, suspension components wear, crappy tires, or over/under inflation of the tires.

 

i would say you did really good.. the stock staggered set up is only good for about 12k miles..
So you are probably due for a set... Get your self a set of Michelin supers sports if you can afford them.. stay away from run flats loud ride like **** wont last long.

 

25k+ on stock tires? good job bro! that's an insane amount to squeeze out of those soft OEM tires. take a few pics and post them up so we can see the tread, but at 25k, I'm pretty sure your tires are toast.

 

 

looks like you can roll on those fronts for a few more months. what do your rears look like?

 

You need to watch that outer edge of the tire. Can you go a little longer? Maybe, but I'd start looking for the best price on the tires I want if it were my car.

 

25K is good! I changed my Dunlops at 16K but then again im lowered on RSR downs with no camber kit.

 

Thanks for the help guys. Figured it's better to get them now than to try and squeeze a few extra weeks out of them.

went with the Yokohama Advan Sport tires

 

I got over 26k on my stock tires. They probably had a few thousand left but I was dying to put some Michelin on. This is one aspect I wouldn't cheap on! Go measure your tread depth, 2mm left is the legal limit. You don't want to get into a heavy downpour with 2mm of tread depth!

 

damn! i only got like 15k on the OE tires!! looking at the picture you posted, id replace them soon.
then i went for Continental DW. now im running PSS!!!

im happy with the PSS, i'll most likely get another set of PSS.

 

thats called negative camber wear. Next you are going to see metal threads, then the tire will blow out possible damage your rim and leave you stranded. Tire should have been changed 1000 miles ago.
You must drive 100% highway to get that many miles out of a low profile tire

 

whatever tires you decide to get never get the OEM ones again, they are utter garbage

 

Oem's are the worst, I feel like they under bid so much for lexus, lexus couldn't resist the deal. Reminds me of Bose, junk.