Wheel alignment necessary or change tyres?


#1

We have a 2005 Toyota Highlander, which we bought in Dec 2004. It is mostly used for short distances driving around town and has only ~8,000 miles on it. We recently had an oil change on our car and the shop said there was uneven tire wear on all 4 tires (around 9/32 of tread on the middle; 7/32 on the edge). They said that a wheel alignment might be needed (although that was based on the evidence of the tires, not checking the actual alignment).



I am trying to figure out whether the alignment is actually needed. My understanding is that if the wheels are out of alignment then normally 1 or 2 tires would be unevenly worn – not all 4. Can anyone give any advice please?




#2

Have you also checked the tire pressure? Is it at least the pressure as listed in the owner’s manual or the placard posted in the glove box or a door jamb? Chronically underinflated tires can also cause outside edge wear.


#3

That is underinflation.