Front tires are wearing on the inside. Probably towed out too far or control arm bushings are bad.
In addition to this, the passenger side has noticeably less tread remaining than the driver side. Could the weight of a heavy driver cause the driver side to stay on the pavement, while the passenger side is a little lighter and it gets dragged along and wears out more?
Could be too much negative camber for how it is driven, could be too much toe out.
For cars that see racetrack time, the drivers side wears more. For a street car, the driver’s weight shifts load to the drivers side so pass side wear is odd. It could be the drivers fault…unintentionally cornering harder to the left than right. If there is a lot of road time on 2 lane country roads or lots of time in the right lane of the highway, the road camber might cause more wear.
Bottom line, this is why regular tire rotation is advised.
I always cross rotate at least 2 tires when I rotate mine or a customers tires, as long as they are NOT Directional or staggard…
My tires as well as customers tires wear the same, as long as the alignment is within specs…
And for those who say, that is not how the owners manual says to do it, I say, the owners manual also says your automatic (well for many years now anyway) has lifetime ATF also… lol
Good point, it is easier to make a fast swooping left turn than a really tight right (right-angle) turn at a traffic light etc etc…
My idea was that the tire with less weight on it is slipping due to the alignment problem, and the one with more weight isn’t so less wear on it. It’s assumed that the wear is due to an alignment problem, but why does an alignment problem affect one side more than the other is the question.
Typically an alignment problem would wear one tire… or one end of the car rather than a side. Putting it up on a rack and getting the actual alignment values would help answer that.
In normal use, the tire slip is very minimal. There would need to be a large difference in load to create that difference. The heavier side would wear more than the light side. Think of FWD on a low power car driven like grandma. The rear tires … the lighly loaded ones… would wear much less than the heavier fronts even with excellent alignment and suspension design.
