I have 215/45/17 RT615s up front. I don't take the turns very aggressively, nor have a tracked on these. Only daily driving, hardest turns are occasional right hand freeway on and off ramps (not taken fast by any means). Got an alignment maybe 5 months ago, when the front tires were brand new.

Basically if you look straight at the front of the car when the car is on a lift, the passenger side tire is very rounded, while the driver side tire is noticeably more squared off. Tire pressures were the same when i checked, so that shouldn't be the problem. I recently noticed that the car pulls left under no crusing w/ no throttle and pulls right when applying throttle--most likely due to the uneven front tire wear.

*Rear tires are pretty new.

So what might have caused the weird tire wear on the front tires? any input is appreciated.

Does this sound like wear from the right turn ramps?
Wear from alignment specs?

 

Are both edges of the tire rounded or just the inside? Can you check the tread depth and tell us the difference between the drivers and passengers sides...measure at three points on the tire...inside, middle and outside.

You may have an alignment issue. If the increased wear is only on one edge, then the toe angle may be bad.

 

Yeah i can try to check tread depth. IIRC, i think it might have been the inside and outside...but not sure. Definitely the inside was worn....so noticeable. What would you think if the inside and outside were rounded?

 

Picture please. My wear FYI is perfectly square. My initial though is toe scrub.

 

Ok, well i lifted the car to take pictures,.......and the tires look pretty evenly worn now! Nothing like how i described--weird. My description came from when i lifted my car a couple weeks ago. I guess they have worn more evenly since then, so now i'm even more confused as to what would create the pulling. Maybe my alignment settings got out of whack already...i hope not b/c that alignment was expensive!

Didn't get measurements, but the passenger side tire looked to have very slightly more neg camber wear than the driver side, but the over shape of the two seem to be very close. Nothing like how i remember them a couple weeks ago.

 

also forgot to mention, my steering wheel is off center now as well...my alignment was 5k mi ago, and i never hit any pot holes or anything to throw alignment off. I'm still thinking it has to do with my tires, but still not positive.

 

Looks like camber related wear rather than toe.

Where did you get your car aligned? Many chain or large tire/alignment shops will re-align your car for free for 6 months after your alignment.

 

yeah i didn't go to a chain, it's a small shop here, that does very good work usually. I'll have to see if they can check my alignment for me.

 

Here's my alignment sheet. It was done a little under 6 months ago, and around 6k mi ago. I'm fairly confident that the shop owner would have said something to me if any of the settings looked off, or weren't good, but what do you guys think? I'm still going to take my car back to get the alignment checked/redone. It's just weird that it would drive fine, perfectly straight, for months, then suddenly go out of whack.

 

yeah, it looks like the camber was the culprit, your initial readings were about .5 degrees off.