Hi,
Does anyone know the typical mileage for a dunlop sport AS 7000 OEM tires?
When I looked up the warranty, it gave measurements in terms of tread wear but not mileage like other tire models. And I am not very familiar with the tread wear measurements.

Thanks,
thecoolking

 

Additional question on tire inflation. Costco website says that their auto center inflates tires with nitrogen and not compressed air. Can anyone would suggest/do not suggest doing that?

 

Have you went to their web site to check this out yet?

 

I think nitrogen is just hype. Certainly NOT BAD to do it, but little or no value. If they do it as a matter of standard policy, fine. I wouldn't pay extra for it.

It DOES help to keep moisture out, but *SOME* air compressors are pretty good at drying the air.

 

Keep in mind that good-old-fashioned "Air" is already 78% nitrogen and that filling a newly mounted tire will only raise the nitrogen percentage in to the low ninties. With that in mind, it is pretty safe to say that all the noise surrounding nitrogen in tires of far more hype than substance.

If a tire shop puts nitrogen in my tires, that's fine well and good, but as JimBlake stated, I certainly wouldn't pay extra for it. That and when I need to add a little pressure, I'll be using air regardless of what is in the tire already.

 

Thank you for the response. I am watching some deals on slickdeals.net. I think I may buy 4 tires from there but not sure if I need to add these -
TPMS kit
Also if I wanted to install these tires, do I need to do all these steps -
installation
mounting
wheel balancing
tire rotation (there is a 90 day tire rot and a lifetime tire rot) Any idea what the difference?
tpms kits
dispensing old tires

 

TPMS (tire-pressure monitoring system) depends on whether your CAR needs those.
The TPMS "kit" is new mounting gaskets for the sensors, maybe new valve core. If you are buying new rims along with new tires, then you either buy new sensors or swap them over from the old rims.

Somehow you have to do all the other stuff. If you have the equipment to do it yourself, then you probably would have known what it all means.

Mounting = putting the tires onto the rims.
Balancing = installing balance-weights so they don't shake.
Installing = bolting them onto the car (that one's easy DIY).
Disposal = throw away the old tires (most states have disposal fees).
Rotation = swapping their positions around the car every so often (DIY).

Lifetime Rotation = free rotation by bringing the car back to that shop.
Rotation is easy, so this one is low-value for me.

Lifetime BALANCING = free re-balancing as long as the tires last.