2013FSport

iTrader: (2)

Improper toe and neglecting tire pressure are bigger factors than camber.

And just because it meets the specs for toe and tire pressure that doesn't mean it is ideal for all drivers.

A grocery getter needs more air pressure for all the scrub induced in the parking lot than a pure highway car.

That said small changes in tire pressure from the pillar name plate can make a huge difference in tire life. But you have to pay attention....

crashman

I'm going to respectively disagree with you.......the problem this ,IHO, is all camber.

richard203

iTrader: (1)

I think our car have this problem, if you corner fast.

2013FSport

iTrader: (2)

Fair enough, but OPs tire wear pictures are more than negative camber.
Like toe out, negative camber and low pressure. Low pressure allowing the tire to get on edge and destroy it.

Davenlei

iTrader: (1)

My fronts wore similar to your (but not as extreme) front tires. I replaced the tires and had an alignment done and was told my alignment was pretty bad. I got 30K miles on them and almost all the wear was on the inside edge. The outer edge and middle looked like it had another 20K miles to go on them.

My rears wore pretty fast too (20K miles) and was told it was out of alignment as well.

allwheels

That's just a "i waited way too long to replace my tires" problem. With the IS and GS and the low profile tires they have, the wear pattern is heavier on the inside edge due to camber. You should always have an alignment done with new tires, but that is a normal wear pattern for these cars.

bclexus

Nope - that is not normal wear...

allwheels

I see them everyday, thats what happens when they wear out. Inside cords.

bclexus

Not with my tires - all four tires wear perfectly. I suspect many other GS 350 owners have tires that wear properly too. If you are lowered or slammed - that's usually a different story.

2013FSport

iTrader: (2)

Cornering fast creates body roll. So that outside tire with the negative camber effectively lays down flat (zero camber) as weight transfers to the outer tires through the corner.

Typically the inner tire goes more negative than it is statically but it doesnt wear as it is unloaded from body roll as mentioned above.

Of course abrupt/fast steering inputs impact wear but most DD are not pushed that hard....

wbmx1981

Yup, park the car. Get new tires and an alignment ASAP.

allwheels

Its possible that the awd has different wear characteristics compared to the rwd. 99% of what I see in Ohio is awd.

Afrosheen

Obviously. AWD has matching tires that can be rotated in the standard X pattern. RWD with offset rear fitment can only do left/right and therefore your tire life is essentially cut in half.

mryeh17

I get the same slow-speed skip and jump when pulling out of my garage (I have to cut the wheel pretty hard). I have Michelin Pilot SuperSports with about 5k miles on them, I think it's normal especially because my driveway always has pine needles on it.

In my opinion the uneven wear is not normal, I agree with others that you need alignment checked.