Bingo. Right on the money.

Problem is Toe.

TS,

The thing is, the SC's alignment machine might be out of alignment as well. When was the last time they had it calibrated?

Your toe will never be 0.0 degrees. and this is why.

When they set the toe to 0.0 on the machine (assuming its correct), Also once you load your car, your alignment settings will all change. They will still take the car out for a test drive. and since our roads are fairly badly crowned (for water evacuation) they will manually compensate with toe adjustment to the right. Sometime that goes a little off and this is what you self.

I'm running 2.5degrees negative camber up front and 1.5 at the back and my PS3s lasted 40k km. My rear has toe out 0.5 degrees and it wears faster (don't ever use this setting unless you want a really tail happy car).

Not sure what you are on about.


The reasons for abnormal wear are as follows. In that order.
1) improperly inflated tyres
2) out of spec alignment. ( which normally happen when you have worn out bushings or have hit something hard enough to bend some suspension components)
3) tyre failure (out of round, carcase failure)

Roads being crowned and your mechanics answer has little to do with wear..your car isn't 100% balanced left right to start anyway especially with you on board....unless as I posted, the alignment tech mucks it up when trying to set the car to go straight on a crowned road. ( which by the way, also concerns caster angle along with toe...but since caster angle can't be easily changed, they just tweak with toe.)

Tyres last 2 years? I haven't had tyres last more than 1 year in the past 8 years.