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So I'm getting new tires today and thought I'd post a quick review of the Discoverer AT3.
Tires installed June 2014 - 12,900 miles
Tires replaced May 2015 - 65,225 miles
I would absolutely buy another set of these tires but I'm replacing them with the Mastercraft Courser AXT...same tire, still made by Cooper, so technically, I'm getting the same tire again.
I do outside sales to gas compressor stations so I spend a lot of time on wet, gravel roads and deal with lots of pavement, from highways to county roads...snow, ice, rain, sun. I also see the occasional construction site and logging road.
These tires have handled everything I've thrown at them and asked for more. Until recently, the wet weather traction has been awesome, but now that I'm down to the wear bar they're getting slick.
Snow traction was good as well. My truck did not have any weight in the rear and was horrible in 2wd. 4wd was planted and felt completely solid on snow and ice.
My only complaint with these tires would be the wear. They wore quickly down to 8/32 and then it seemed to level off. The edges of the tires wore worse than the rest of the tire, but that's also because there are no straight roads in WV so 75mph on a curvy interstate will do that to a tire.
Noise was not bad. The tires were pretty quiet when new and got louder as they wore. Noise was worst right before they were replaced due to the wear on the outside edges.
Tire wear was mostly even across the tire. I rotated roughly every 5,000 miles. Air pressure at the start was 35psi and I bumped it up to 45psi. The higher air pressure seemed to help with the wear along the outside edges.
Great review! Thanks for sharing your experience with these tires. I know several folks who run these in the high desert/Colorado mountains/Southwest and they all have good things to say about them.
I had an absolutely horrible experience with coopers on my last truck. I will never own another set of those again. Hard to balance, funny wear patterns, out of round, etc. It was a nightmare.
I too have been very happy with Cooper AT3's.
I live on the coast and we have very curvy roads and a lot of wet driving conditions. the wet weather handling of these tires is very, very good.
Cooper is also good at covering mileage warranties.
Cooper AT3's recently came out as the clear winner in a tire to tire comparison of the major tire brands truck tires.
Have the at3's on my truck and was hoping you had a horrible review because I put a lift on my truck and want the 32's to hurry up and wear out so I can go up to 35's LOL.
Oh well may just sell them and use that toward the bigger tires at a later date, so far only a few thousand miles on mine and they are super quiet, great traction and very smooth ride, I use dyna beads so they are dynamically balanced on going. No need to re balance and no funky looking weights stuck to the rims.
I've ran cooper stt's on my last three trucks. Love the coopers. I had bad balancing issues with two of my nittos and ended up being bad belts in them. My Toyos wore very quickly and wasn't impressed with them. I keep going back to coopers.
I have approx. 30K on my Cooper AT3s and have been satisfied with them. I did not get the wear that you have though. I think mine will need to be replaced around 45K.
In comparison, the factory GY SRAs only lasted 33K, so the Coopers were definitely an upgrade.
I drive on a lot of twisty roads around here, so 40k is a great lifespan for a tire.
I'm thinking of putting on a 275/70/18 next time, probably either the General Grabber AT2, BFG KO2, or GY Duratrac.
05-26-2015, 09:36 AM
Cooper Discoverer AT3 - 52,000+ mile review
