Yesterday my wife noticed the TPM system light turn on and beep. I checked out the tires and noticed the back left or passenger tire was low on air. I took it to Discount Tire and unfortunately because it was like a staple or two nails, two holes close together they could not repair it so I bought a new tire. The tread depth on a new Michelin tire is about 9 or 10/32's, can't exactly remember, while the tread depth on the other three older tires is at 6/32's. I asked if I should be concerned about running a new tire with three older tires with less tread depth he said there is no reason to be concerned. He recommended that I wait till the other three tires reach 4/32's of tread that will qualify them for a discount on the next three Michelin's purchased and the new fourth one would qualify for some sort of goodwill rebate/discount and then I would finally have four new tires. I'm conservative in regard to tires, does this logic seem sound? TIA

 

Discount tire is pretty good and they always seem eager to sell me a tire. If they didn't try to sell you a tire, I think it is because the logic is sound.

However, I would also consider buying another single new tire. That way you have 2 match sets of two tires.

As you know, front tires wear faster than rear tires. You can put the new tires up front and they will wear faster. I doubt if they will wear fast enough to catch up to the rears, but you never know.

 

Thanks for the response. I want to avoid tread depths that do not match and replacing a tire or two here and there. I think I will go with Discount Tire's recommendation and when the other three tires reach 4/32's tread depth I will replace them all and get a goodwill credit on the newest one.

As far as the puncture is concerned, there are legal guidelines they have to follow, so I agreed with their recommendation. I was also concerned about tread depths that do not match effecting treadwear, driveablity, etc., but since this is a basic rear-wheel drive no problems should be encountered.

 

I'm with DshngDaryl about buying another single tire & running matching pair. The only difference, is that I would put the new ones on the rear & continue to wear the older tires out first. When it's time to purchase 2 new ones, I would then put those on the rear & move your fairly new ones, to the front.....just my thought

 

I just purchased an '06 with new Pirelli PZero Run Flats. They ride rough. I've read that they should not be driven in ambient temps of 45 or below. While I don't plan on driving the car in the snow, I do plan on driving it when it's cold out (ie: below 45) and everything I've read said it's dangerous & not to. So I think that, sometime in the fall, I should switch to All Seasons. Looking to stay with the same size, but want a grand touring tire that gives a smooth & comfortable ride (going for luxury here!). I read that Vredenstein Quatrac Pro are good. Anyone replace their summer rubber with all-seasons and, like me, were looking more for ride comfort/no noise than handling (since it will never see a snowy road)? If so, what brand/type?

 

I replaced my runflats with Michelin A/S....they have a very quiet ride, great handling & all around good tire. There are a lot of brands out there, that can deliver the same, so do some research & see what might best fit your need & pockets

 

Michelin Pilot Sport AS3

 

I agree with buying a matched set and putting them on the rear. The rears should always be identical diameter, and your newest tires should always go on the rear. I also agree with the Michelin Pilot Sport AS3 recommendation.