purrybonker

My car most often hits the road for long hauls. I mean my '06 has 40k miles, so it gets driven and it gets driven on lots of two-lane blacktop, but there's often lot's of interstate-like driving in between the curvy parts.

I had a slow leak in one of my rear tires at about 3/32 or so of remaining tread. A stop at the local tire shop for a patch job revealed significant inner wear on the rears. The tires are basically bald on the inner edge.

I have a new set of Pilot Super Sports on order but I'm wondering if there's something different I should be doing with my alignment to avoid similar results with the new tires.

911SLOW

Camber and toe can affect wear. Especially toe. With the new tires check that your alignment is within the normal specs.

BoxsterG

I recently discovered I had worn my tires down to the belts on the inside. I couldn't tell by looking from behind that they were wearing until after the belts started to show through. Monday I repalced my PS2's with Super Sports and then had the car aligned to correct the toe. Hopefully that will resolve the issue with this set of tires. I suggest you get an alignment to assist with your issue.

PVP997

Normal ware pattern, price of driving a performance car

springgeyser

I constantly inspect my tires and flip them inside-out at halflife.

GuyIncognito

change lanes more often

Edgy01

The real reason you have such inside wear is because you are not driving the car aggressively enough. When you do, that wear evens out across the entire tread.

Because these rear tires are so wide, many never look closely at the INSIDE portion of the tread until it's too late.

The negative camber is there to assist you in the corners/turns, but if you just lope along on a straight highway mile after mile, you're only wearing off the inside of the tires.

Alan C.

Go rack up some tickets and report back with your new tire wear.

halsyknox

The alignment specs from Porsche call for negative camber. I don't race mine so when I got new tires I had an alignment as well and told them to split the difference between spec and flat. I have had no handling issues, but like I said, I don't track it. I'll take a slight performance drop to save having to replace tires due to 1% of it wearing out. That performance drop will never be felt on the road.

sjfehr

This!!! I wear out the outside corners long before the insides go. Rear camber and pressures are specced from the factory pretty close to ideal, but front camber and pressures are carefully selected to ensure terrible performance to ensure nice safe boring understeer under all conditions to keep trophy wives out of ditches.

If you're wearing the inside corners out faster than the outside, you're not driving hard enough or often enough. Likewise, if you're using Porsche-recommended tire sizes and pressures and are not going through 2 front tires for every rear, you're not driving hard enough. (Understeer will murder front tires at OEM alignment/pressures if you're driving hard.) If you get camber plates and bigger front tires to fix Porsche's gimping of the car, the balance will go back again to eating rears more quickly.

You can't really rotate tires for inside corner wear, but with most brand/model of tires, you can have the tires re-mounted, either swapped left/right, or reversed on the rim. Will set you back about $30 at most tire change places, but stretch a lot more than $30 worth of life out of them.

Macster

The only thing you should be doing differently with the car's current alignment is have it replaced with a proper one.

Toe in at the rear is the culprit. With a proper alignment and kind of driving you give the car the rear tires should wear very evenly across the tread and last maybe 20K miles or so.

Sincerely,

Macster.