To make this brief, the road hazzard warranty that you are offered through Wal Mart is honored, but they do not make it clear that you are not honored under the warranty to the extent that you might expect at the time you are buying the expensive warranty on each tire that you buy. The tires that Wal Mart sells are cheap, often having defective sidewalls and the warranty only covers the tire fully until you have driven one fourth of the life of the tire.
The possibility that the warranty is going to be worth what you paid for the whole of the four tires that you might buy is going to be doubtful as you will have to pay nearly as much for the tire that you buy, even though the tire itself was defective.
Eg. - My tires that I have bought from the Wal Mart SuperCenter's Tire and Lube Express have always had the full protection of the Road Hazzard Warranty and the Lifetime Balance included. A tire on my car had the sidewall completely blown, obviously a defect in one of their cheap Walmart tires. Because the 25% of the life of the tire had already passed, Walmart Fayetteville, Tn charged me within 5 dollars of the price of a new tire for replacement, although it was obviously a defective tire.
My protest is to warn others to check thouroughly the warranty that Wal Mart tries to sell you, as it is not worth the price they charge. As soon as you drive off the lot you will be loosing the worth of the tire. Personally, I feel I was sold a bunch of thinking that my tires would be warrantied against any defects, so check the warranties throughly before you buy anything additional other than your tires. It is a ripoff. You will never regain the amount that you spend, when you consider you have invested this amount on each tire.