Front Tires Wearing on Edges - More Air?

Nick1994

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This is for my 2018 Genesis G80, the front tires wear more on both the inner and outer shoulders. I bought it at 83k miles, currently 107k. It had basically new Yokohama Advan Sport A/S+ tires on it when I bought it, which are supposed to have tougher shoulders. Alignment at the dealership at 91k and 102k miles. Tires rotated side to side every 5,500 miles or so at oil change time. It has staggered tires.

I had what's currently the RF tire replaced at 91k miles due to a pothole. I got an alignment at the dealership at that time. This tire has all 4 grooves at 8/32" tread. The shoulders are starting to wear more.

The LF tire has 24k+ miles on it, currently 6/32" tread across all 4 grooves. But the shoulders are pretty darn warn, they look worse in person. I am not a slow driver, so cornering and highway curves are pretty speedy. But I thought this really only affected the outer shoulder of a tire? Odd since they're wearing on both the inner and outer shoulders.

My concern is that once I get lower in tread, there won't be really much of anything left on the shoulders. I guess I just need to run some more air in the front tires? The door placard asks for 33/38 psi, I always run the door placard +1. Just went out and set all 4 to 38 psi. Maybe my next set of tires I should get something a little more aggressive, though that might just run less tread-life all together and then it doesn't really matter.

The first 4 pics are the LF tire, the last 4 are the RF and alignment sheet.

And no, I was not the one who curbed the wheels :ROFLMAO:

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The chunks missing and the crumbled nature to the wear is disturbing and not normal IMO and I am definitely not a tire snob.

I search my tires by price: "low to high". lol
 
I have noticed this on some car geometry and tire combinations. We had an Acura TL that would eat up the outsides just like that on any Michelin tire we put on it. It stopped with the set of Kumhos it had before we sold the car.
 
My autocross tires sometimes chunk like that and I think its from overheating them on a run and the heat cycling, plus static camber of mac struts doesn't help when you have some body roll. I think those tires are a little small for the weight and running higher air pressure will help a little with shoulder wear, but if your car has some bodyroll, and you really like the G's in 270deg on ramps, you will kill the shoulders first. For my autocross tires I had them flipped on the rims to get another season out of them.
Unless you go to a square setup, that heavy a car with stock size tires, driven aggressively in the corners will wear any tire you put on the same way, and stickier ones may be worse as you will get more body roll.
 
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normal for a car that is not grandma driven and the tires spend whole life on front axle in AZ.
It might not be a bad idea to bump up the fronts a few psi but it can also change the handling.
 
First, steer tires tend to wear in the shoulders and drive tires tend to wear in the center. That's why regular rotation is important - it evens out the wear pattern. Unfortunately, staggered fitment can't be rotated.

Second, your driving style is adversely affecting this wear. Not only do the outside shoulders wear with ..... Ah ..... "spirited" driving, but the inside shoulders do, too - just less so.

Increasing the inflation might help, but unless you change your driving style, the tires will be worn out long before the center of the tread is.
 
First, steer tires tend to wear in the shoulders and drive tires tend to wear in the center. That's why regular rotation is important - it evens out the wear pattern. Unfortunately, staggered fitment can't be rotated.

Second, your driving style is adversely affecting this wear. Not only do the outside shoulders wear with ..... Ah ..... "spirited" driving, but the inside shoulders do, too - just less so.

Increasing the inflation might help, but unless you change your driving style, the tires will be worn out long before the center of the tread is.

Many FWD cars wear the edges even fully in spec.

Rotating helps but it’s not really a cure all.

My volts tires always had worn edges with passing center tread at replacement, not much you can do
 
Try different or dealer alignment shop. Do the wheels balance? Does the curbed wheel indicate previous front end damage?
 
We only got 27k out of a set of Michelin cross climates on our Prius V. Rotaated and balanced as prescribed by Costco. Alignment was good per Les Schwab tire. Costco pointed the finger at Michelins policy and Michelin pointed the finger at Costco as the retailer. Got screwed out of any proration. Not cheap tires and I wouldn’t have bought at Costco again but I drove the car 2 hours each way to get there with the expectation of them doing something to honor the tread wear warranty. Said it had to be worn evenly across the entire tread face. Well that was the problem. And it’s not like we’re racing a Prius. It’s literally the car that goes to soccer practice and the grocery store. See if these Bridgestones do any better. The stock tires lasted like 48k before I replaced them with those Michelins.
 
Said it had to be worn evenly across the entire tread face. Well that was the problem.
No one is going to pro-rate tires that are not evenly worn across the surface. A lot of cars do not wear tires evenly for a multitude of reasons and it is simply a "too bad so sad" situation when it comes to tire warranties.
 
No one is going to pro-rate tires that are not evenly worn across the surface. A lot of cars do not wear tires evenly for a multitude of reasons and it is simply a "too bad so sad" situation when it comes to tire warranties.
These Genesis wear the rear tires on the inner shoulder due to the camber. Just the way it is.

Plus being staggered, the tread life warranty is cut in 1/2 with Discount Tire so it’s whatever.
 
No one is going to pro-rate tires that are not evenly worn across the surface. A lot of cars do not wear tires evenly for a multitude of reasons and it is simply a "too bad so sad" situation when it comes to tire warranties.
I’ve had prorated warranty elsewhere though, so we can’t say nobody will do it. Especially when the manager said to bring my receipts with me so we could see what we could do. I drove over 4 hours round trip to get told nothing they could do even though I provided all documentation they asked me to bring. They should’ve just said sorry before me driving and being stuck paying full price again. Must be able to understand how this was frustrating. Sure hope the Bridgestones last longer. 27k out of a set of high dollar tires on a prius is disappointing. Aligned, rotated, balanced as recommended. Not racing this car or anything, and the original tires lasted much longer.
 
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