Out-of-spec camber actually in-spec?

[Cani Lupine]

They start out with 9/32" tread depth and a wear rating of 340.

Got a couple calls from Corporate about the camber confusion, so hopefully something will get done about it. They're basically being a middle man between me and the dealership.

[DirectNova]

Got back from the dealer, 8950 km on the clock, 3/32, they cant do anything about it, the alignment is okay, according to them, could it be related to what you're saying?


Bad oem alignement + Spirited driving : really really bad threadlife?

[hank]

It's very common for cars to go out of alignment after hard driving, especially in mountain passes or uneven pavement. I think that the tread life is absolutely correlated to the spirited driving as the mirage was not a car meant for such application. Slightly tighter torque spec after a realignment or the installation of stiffer suspension bits should help out.

[Cani Lupine]

Got a call from someone slightly higher up about my case, and he spoke to the suspension engineer to confirm that the rear camber settings are non-adjustable. Basically, there's really nothing they can do about it until someone comes forward with a complaint that can be addressed, like your very fast tire wear, Nova, or issues claiming treadlife warranties because the alignment is out of spec on paper. I told him that this will very likely become a bigger issue if it's not addressed soon, as more Mirage owners notice the discrepancy. If you'd like to help them either find a fix to bring the rear camber back down or change the spec sheets so it no longer says it's out of spec outside of dealerships, feel free to contact Mitsubishi Corporate through the MitsubishiCars.com contact form.

[DirectNova]

My rear tires are as new, the front one's are killed.

[Cani Lupine]

Is the wear even? Or is there more wear on one of the edges?

[DirectNova]

Wear is camber related, inner tire.

[Cani Lupine]

I would suggest contacting Corporate, then, if it's an alignment issue that the dealership won't address. They can easily blame wear on the outer edges of the front tires on aggressive driving, but inside wear is definitely an alignment issue. It took about a week to hear back from them, but they've really been following up on my case, so they do pay attention to them. I used this contact form here to get a hold of them: https://www.mitsubishicars.com/contact-us-form

[Ares]

Wear is camber related, inner tire.

I noticed this as well, on my 185 spec tires. I didn't mind it thinking that the wear was from the previous owner.

[3dplane]

All this talk made me check the alignment on mine.
Before:


And after:


Sorry for the garbage pictures,this is the only way I can attach right now. Red is bad,green is good.

Can not do anything with the rear toe unless taking the backing plates off and shim it,which is more work than I'm willing to do now. Camber ok.
Also this is with about 100lb of weight in the trunk that I carry.

Tires are evenly worn to 5 to 6/32" all around with almost 17K miles on the car.

R/F camber went into specs after bouncing the car and the suspension settled.
(I have front spring compressors installed as well)

It takes very little to be out of specs. A few tenths of a degree (like my rear toe)will not eat into the tires.
But 1+degree out anywhere is bad and something has to be done about that.

EDIT: To the OP! After reviewing the specs, front camber specification of -0.7 to 0.8 degrees and rear camber specs: -1.8 to -0.3 degrees, your measurments of 0.18 LF, -0.29 RF, -1.78 LR, -1.66 RR. seems to be within specs.