I brought my 2007 Mercedes Benz CLK 350 in for service inspection as the "brake pad wear" light came on recently. During the inspection, I was informed that the rear tires on the vehicle needed to be replaced. All four of the tires on the vehicle are Michelin Pilot Sport AS 4 B 225/45ZR17 94Y XL Michelin Pilot Sport AS 4 B 245/40ZR17 95Y XL Michelin Pilot Sport AS 4 B I was shocked by the news that these Michelin tires needed to be replaced, given that the vehicle is driven less than 4,000 miles a year, and the vehicle is almost never driven on the freeway, and is rarely driven above 35 mph on surface streets. I have now confirmed that these Michelin tires were installed by Big O Tires on December 7, 2020, at which time the mileage on the vehicle was 90,415. The December 7, 2020 invoice from Big O Tires states that these tires come with a warranty ("Minimum Mileage Warranty: MFG45"). This past week, on Monday, May 12, 2025, the odometer mileage was recorded as 105,606. Assuming these odometer readings are accurate (which they appear to be), this means the vehicle has been driven a total of only 15,191 miles in the 53 months since these Michelin tires were both recommended and installed on the vehicle in December, 2020. This is under 3,500 miles per year. I have never heard of tires lasting only 15,000 miles, and I certainly did not expect this of a supposed "quality tire" bearing the Michelin brand. Honestly, I thought that I was buying the best possible tires for this vehicle - and, in any event, these were the tires that were recommended by Big O Tires. During my second trip to Big O Tires on Monday, May 12, 2025, I asked about whether these tires came with a warranty, or whether the dealership (Big O Tires) or the manufacturer (Michelin) would stand behind the tires and admit the obvious - that these tires are not supposed to wear out within 15,000 miles of ordinary driving. In my discussions with Big O Tires on Monday, May 12, 2025, I was given the clear impression that there was nothing that could be done for me at the dealership (Big O Tires), and that I was free to take the matter up with the manufacturer (Michelin). This seems strange to me, since these tires were recommended and installed under a warranty by the dealership (Big O Tires), and it is the dealership that promotes the Michelin tire brand. I have now done some basic research on the internet, and it seems that many other customers have complained about these tires wearing out prematurely. The loudest complaints seem to be from customers who likewise cannot believe that Michelin tires would last as little as 15,000 miles. Conclusion The more I consider what has transpired, it is unlikely that I would rely on Big O Tires or the Michelin brand in the future, or recommend them to others.

I’ve previously owned the AS3 and AS3+. These new AS4 are noticeable better. It handles and grips just as good as previous models. The improvement is in the noise and comfort level. Noise being more muted, meaning in a more comfortable ride. It’s an early assessment but hope the durability and longevity will be impressive. We will see.

These tires lasted me 57,000 miles on my Tesla Model 3 RWD. Would probably last another 2500 miles but changing before rainy season in california. Tires are very grippy in rain and dry, but the noise and drone of tires is a bit excessive. Overall I love the performance, safety and longevity of the tire so decided to get a second pair.

Replaced the old Stock Pilot Super Sports on my ‘19 Z06 Convert with a fresh set of Pilot Sport A/S 4’s. Absolutely love them. Pilot Sport A/S 4’s are rated for hot and cold ambients, dry, rain, and even snow. The perfect tire for northern state roads and highways. The Ackerman effect with tight turns, hydroplaning on rainy roads and pebble showers on the bottom of the car common with Pilot Super Sports is gone. The A/S 4’a are definitely quieter than the Pilot Super Sports. The A/S 4’s may have a bit less traction on hot dry track days but I’ll never miss it. I’d much rather have the extended driving season with the A/S 4’s . Thank you Michelin!

These tires have great grip even in the heaviest of rains however you pay for this with 15-20% range loss in all driving conditions in my Tesla Model 3. I normally only drive it locally but now I can't really take it on long trips because it will require charging stops.

I am hesitant to give a 5 star, because these tires on my Miata, seem to lack smooth steering. For example, when you just slightly turn the wheel, it jumps like it had difficulty going over its own tread?????, then when you turn back slightly it sticks and jumps. Very subtle, different then the OEM tires that were on the vehicle. Wish I really knew what was going on. Air pressure is what is on door jam. I may vary tire pressure and test.

Purchased these AS/4 tires to replace factory Pilot Sport Cup tires at 10,002 miles. These tires are much quiter with improved ride and very good lateral grip. They will go up in smoke with a hard launch or agressive accelration out of a hard turn. However; under normal driving conditions they are great. Highly recommened to anyone daily driving a high performance sports car.

Went from 17 inch To 18 Inch, huge jump in performance (both wet and dry) from the tires Ford put on my 2015 Mustang eco-boost. People told me the road noise would be an issue but quite the opposite. Black car, wheels, tires. Sorry, can't figure out how to transfer pic. from my phone (LG)

I no longer engage in terribly spirited driving (its been 25 years since racing school), but I still appreciate a superior sticky tire. I have also gained a fondness for a quiet , smooth ride, which you normally don't expect with a performance tire. I was therefore pleasantly surprised at how much these tires delivered all these qualities with so few of the usual compromises. For my purposes, this was an excellent choice, with much more grip than the OEM tires, and equal smoothness and very little more road noise. Unless you think you want a super stickey tire ( and are willing to pay the price in dollars and discomfort), I recommend the A/S 4. It looks like the new standard for an all season performance tire.

These were quite a bit softer and quieter than the Pilot 3 + tires removed after 40,000 miles. The Pilot 4 AS felt initially like it wouldn't be the same in handling as the 3+ AS but that was totally wrong. They handle great. I would definitely buy them again.