I have a interesting situation to say the least.
Does the tire load rating matter?
My local Mazda dealership doesn’t think the load rating matters unless I’m driving 140 MPH. I don’t drive my car much as I bike to work all the time, and only drive my vehicle when going on long trips at high speeds (75 to 80 MPH freeway driving.)
I purchased a set of 4 Kumo KH-16 215/50R17 tires with the road hazard plan at my local Mazda dealership on 2/22/2013 with 87,554 miles on my vehicle.
Immediately after I purchased the set of tires on 3/2/2013 at 87,745 miles the rear driver-side tire went flat due to a sidewall puncture
On 3/19/2013 at 90,158 miles (~300 miles later) the other rear tire started a slow leak on a trip from Kansas to Florida and I had air it up every 200 miles. They found a damaged tire and replaced it.
4,300 miles later at 94,451 miles (8/5/2013) on the next trip the front driver tire developed a sidewall bubble and had to be replaced.
At 95,631 miles on 9/24/2013 after that the only other tire that wasn’t replaced had to be replaced due to a leaking TPMS sensor
On 12/21/2013 at 97,848 miles a nail was found and a broken valve stem again in the rear driverside tire, and the tire was patched up.
We made a trip from Kansas to Texas without issue in March.
On a trip to Des Moines yesterday (at 104,154 miles) the rear tire had to be replaced at Tires Plus due to a 3 inch slice in the tire.
Bad luck? Or bad tires? At Tires Plus they stated that the Kumos they put on at Mazda were rated for 90V load rating. They stated that this is illegal and Mazda recommends 93V or higher load rating tires. They put a Bridgestone 95V rated tire on the vehicle, which I immediately note drives a **** load smoother.
I am trying to get some firepower to complain to the manager at the Mazda dealership which put these tires on my car, but they seem to insist that it doesn’t really matter unless I’m driving 140 MPH or higher what load rating the tires are. I need some official documentation to prove them wrong and if I can’t get my way with the dealership, I need some official documentation to provide a lawyer, as this is 6 flats in less than 16 months, and I have only had 1 flat prior to this in the 50,000+ miles I have owned this vehicle - so something is up!