The Grandtrek AT20 is Dunlop's Highway All-Season tire that was developed for the drivers of pickups and sport utility vehicles. The Grandtrek AT20 was designed to deliver low noise, a comfortable ride, and year-round traction, even in light snow.
The numerous Grandtrek AT20 sizes developed for the aftermarket are branded with UTQG Ratings of 500 A B and have been designed to provide a balance of traits appropriate for today's lavish pickups and luxury sport utility vehicles, while the few Original Equipment Grandtrek AT20 tires developed several years ago are branded with UTQG Ratings of 300 B B and appear to place emphasis on low rolling resistance to increase the vehicle's fuel economy above poor weather traction and treadwear.
On the outside, the aftermarket tires feature Dunlop's advanced all-season compound molded into a tread design that combines independent intermediate and shoulder blocks with a continuous center rib to enhance dry traction and treadwear. Then crosscut sipes, wide circumferential grooves and deep lateral grooves provide the biting edges needed to enhance poor weather traction. On the inside, twin steel belts stabilize the tread while a Dimensionally Stable Polyester cord body and bead design promote ride comfort, handling and treadwear.
El neumático Grandtrek AT20 de Dunlop pertenece al segmento Autopista Para Toda Estación y fue desarrollado para conductores de picops y utilitarios deportivos. El Grandtrek AT20 fue diseñado para ofrecer un andar confortable, ser silencioso y ofrecer tracción durante todo el año, incluyendo superficies con poca nieve.
El Grandtrek AT20 ha sido fabricado en gran cantidad de tamaños y poseen una clasificación de 500, A, B del UTQC (Departamento de Transporte de Estados Unidos); su diseño busca encontrar un balance de las características apropiadas para la actual gama de picops y utilitarios deportivos de lujo. También existen algunos Grandtrek AT20 "Equipo Original" desarrollados hace algunos años que poseen la clasificación UTQC de 300, B, B. Al ser diseñadas, se hizo énfasis en ofrecer baja resistencia al rodamiento para aumentar la eficiencia del combustible.
La construcción externa del Grandtrek AT20 regular, posee la avanzada mezcla de caucho Dunlop para Toda Estación y la moldea en un diseño que combina bloques independientes intermedios y bloques en los hombros, con un segmento central continuo que aumenta la tracción en suelo seco y mejora el desgaste. Pequeñas ranuras sobre la superficie de los bloques, canales circunferenciales anchos y ranuras laterales profundas, se encargan de ofrecer tracción en condiciones climatológicas difíciles.
Internamente, el Grandtrek AT20, posee correas gemelas de acero que estabilizan la banda de rodamiento. Un cordón de poliéster "Dimensional y Estable" en la carcasa, y un alambre de aro o talón aseguran un andar confortable, buena maniobrabilidad y características sobresalientes de desgaste.
Specifications shown are as accurate as possible based on the information provided to us by the tire manufacturers. The dimensions reflect average values for tires measured on the specified measuring rim width. Individual tires may vary from data shown.
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Warranty summary for replacement tires purchased on or after 05/01/25(1 of 4)
See official manufacturer's warranty brochure for specific details.
New vehicle Original Equipment tire warranties often differ from those covering replacement tires. Consult your vehicle documents to confirm Original Equipment tire warranty coverage.
Customers think the Dunlop Grandtrek AT20 delivers a smooth, quiet ride (7-10 scores) and strong dry traction with confident cornering, fitting its highway focus. However, treadwear concerns dominate, with many reporting premature wear (common 1-3 scores). Winter traction struggles in snow/ice (frequent 0-4 ratings), and wet grip shows inconsistency, though hydroplaning resistance fares slightly better. Dry performance shines with stable handling (7-10 range), making it reliable for everyday driving in fair conditions. While comfort excels, durability issues and limited all-season capability in harsh weather may give pause for drivers needing year-round versatility.
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734 reviews mention "Dry Traction"
430 positive
304 negative
Most customers rate dry traction highly, with many scoring 9s and 10s. The Grandtrek AT20 delivers confident highway grip and responsive handling in dry conditions, performing well within its all-season design. While some scores are lower, the majority reflect strong dry performance.
January 15, 2017
3.6 out of 5
...Dry traction has been pretty good.
According to the warranty, I have about 9k miles left. According to the wear bars, I have about 5-9k miles left. They're not the best in Florida downpours, hydroplaning a bit. Dry traction has been pretty good.
Vehicle: 2015 Toyota Tacoma Double Cab 4WD Miles Driven on Tires: 51,500 Driving Conditions: Mostly Highway Location: VALRICO, FL Driving Style: Average
Most customers rate comfort highly with scores 7-10, praising smooth ride and low noise. While a few report lower scores, the majority find the Grandtrek AT20 delivers excellent comfort for highway driving.
September 23, 2019
4.8 out of 5
...they are very comfortable on the road, quiet on the highways, have never let me down on dirt trails and mild off roading...
I'm not sure why these tires get such a bad rap. I've got 30500 miles on my 4Runner and they are very comfortable on the road, quiet on the highways, have never let me down on dirt trails and mild off roading. They also did fine the few times we've had ice and light snow here in metro Atlanta as long as I did my part. In those conditions drive like your grandmother is in the back seat holding a hot bowl of chili... Tread life is good, the edge tread is showing a little rounding but that's to be expected. They are definitely not a hard core mud tire (and shouldn't be judged to that standard) but Toyota picked a winner as an OEM offering.
Vehicle: 2017 Toyota 4Runner SR5 Miles Driven on Tires: 30,500 Driving Conditions: Combined Off Road/Highway Location: SUWANEE, GA Driving Style: Average
...The tires are extremely quite and provide a smooth, comfortable ride.
Overall, a good tire...my main complaint is how fast the tread wore out. For a 60K mile tire, I was not expecting to have to buy new tires at just over half that mileage. I had to replace 2 of my tires earlier due to a sidewall puncture, and even the tread on these new tires is wearing out way too quickly. Wet and dry traction are above "normal" for a big SUV, and I was pleasantly surprised at the light snow & ice traction I got during the winter storm this year...the tires gave me solid, confident control and maneuverability while other vehicles were slipping and sliding all around me (granted, I have 4WD & used it). The tires are extremely quite and provide a smooth, comfortable ride.
Vehicle: 2007 Toyota Sequoia Limited 4wd Miles Driven on Tires: 35,000 Driving Conditions: Combined Highway/City Location: Portsmouth, VA Driving Style: Average
These Dunlop GrandTrek A20s came stock on my 4Runner. I drive in all conditions, being an avid skier and winter snowhound. These have been great. I've had Yokohamas and Michelins on other vehicles, and these are just as good as those. They are fine in the snow and on wet roads. They're also great for city driving and expressways - I live 40 miles outside Chicago. I've been driving for over 30 years, and do know what I'm talking about. The other reviewers who bashed these tires really must not know how to maintain their vehicles. Get a lifetime balance/rotation and allignment, and use it regularly (IMHO, the best $180 you'll ever spend on your vehicle). You can't go wrong with these tires, especially for the price. By the way, there is still no unusual treadwear, they ride smooth and quiet. I could get another 10,000 miles on them easily. And my V-8 4Runner gets 20.2 mpg highway and 17.3 city, way above the manufacturer's specs. (premium gas helps this, but the tires are good) We get about 3-4 feet of snow every winter, and these tires can handle it with ease. As I said, I ski a lot, and drive to the mountains in lots of snow. No problema! I can't believe the difference in the ratings - especially with the General Grabber HTS at the top of the list, ahead of the high price tires. I was all set to get another set of these one of these days, but may opt for the Grabbers, just to see the difference. I think it will be hard to tell, as these have performed great. Ski-ya-later!
Vehicle: 2005 Toyota 4Runner 4wd Sport Miles Driven on Tires: 75,000 Driving Conditions: Combined Highway/City Location: Barrington, IL Driving Style: Average
Wet traction disappoints with numerous scores 0-5. Customers report slippery performance, hydroplaning, and sliding on wet roads. While some rate 7-10, concerns about mediocre wet grip dominate feedback.
February 19, 2024
1.8 out of 5
I DO NOT RECOMMEND THESE TIRES IF YOU DRIVE IN ANY TYPE OF WET WEATHER. Even a drizzle... the hydroplaning on is downright dangerous...
I DO NOT RECOMMEND THESE TIRES IF YOU DRIVE IN ANY TYPE OF WET WEATHER. Even a drizzle. These tires came stock on my 4Runner and they were ok on the road before 35000 miles. But after that? Especially after 40000 miles, the hydroplaning on is downright dangerous. It’s been raining a lot in California, and these tires are scary going over 55 mph on the highway. How Toyota puts these on there trucks is ridiculous.
I STONGLY RECOMMEND AGAINST THEM in the rain or snow.
Vehicle: 2020 Toyota 4Runner TRD Off-Road Miles Driven on Tires: 45,000 Driving Conditions: Combined Off Road/Highway Location: OCEANSIDE, CA Driving Style: Average
...They slid and spun on any type of wet road and I narrowly escaped several accidents due to their sliding and complete lack of grip in wet, snow or slick conditions...
This tire came OEM on my FJ Cruiser and it's the worst tire I've ever had. It was dangerous! They slid and spun on any type of wet road and I narrowly escaped several accidents due to their sliding and complete lack of grip in wet, snow or slick conditions. They even spun in 4WD on the street! They rode like balloons bouncing around due to weak sidewalls and cornered so bad the entire truck leaned and bounced. I was so worried for safety on the road, I wouldn't let my family in the vehicle. After a serious sliding close call, I swapped them out for a popular name brand AT tire and the difference was night and day. It was such a major positive change to no longer be riding on these slicks.
Do NOT purchase. They are very dangerous.
Vehicle: 2011 Toyota FJ Cruiser Miles Driven on Tires: 1,000 Driving Conditions: Combined Off Road/Highway Location: CHESAPEAKE, VA Driving Style: Average
Winter traction ratings are concerning, with many scores between 0-6. Customers report slippery in snow, loss of traction, and getting stuck. Some note mediocre ice performance despite the all-season design.
January 25, 2019
2.7 out of 5
...I've been stuck twice in my yard in 5000 miles where my rwd sedan has made it out with snow tires.
These came stock on my 2018 Toyota 4Runner trd off road, they are a ok street tires but that is about it. If you go off road at all, even a dirt drive way i would not recommend these tires. I've been stuck twice in my yard in 5000 miles where my rwd sedan has made it out with snow tires.
Vehicle: 2018 Toyota 4Runner TRD Off-Road Miles Driven on Tires: 5,286 Driving Conditions: Combined Off Road/Highway Location: MONESSEN, PA Driving Style: Average
I can tell you these are by far the worst performing tire I have ever driven in the winter... if there is any amount of snow slush or ice on the road even in 4 wheel drive your confidence will be greatly reduced. I was stuck in the driveway in approx 9 inches of snow...
I drive in central Pennsylvania and I can tell you these are by far the worst performing tire I have ever driven in the winter. They were ok on dry highway driving and adequate for dry city driving. However if there is any amount of snow slush or ice on the road even in 4 wheel drive your confidence will be greatly reduced. I have been driving for 30+ years and I had more confidence in a rwd 1978 coupe than I do with these tires on a modern 4x4 with traction control, locking diff and ATRAC. I was stuck in the driveway in approx 9 inches of snow. I'm deciding what to replace these with now, as these are just not a safe tire for any type of winter driving in PA!!
Vehicle: 2018 Toyota 4Runner TRD Off-Road Miles Driven on Tires: 6,000 Driving Conditions: Combined Highway/City Location: NANTY GLO, PA Driving Style: Average
...I've been driving in the snow in New England for over 30 years, including 4x4's, various cars, and even rear wheel drive vans (for work) and I don't think I've ever had worse tires in the snow. Last storm I needed to use the 4x4 to move the truck in my flat driveway with about 2" of fresh snow on the ground...
The good; they are quiet going down the road, pretty comfortable as far as bumps and on-road manners, wear has been average I guess. I have not had the severe hydroplaning others report, but they aren't great as far as overall wet traction from what I've experienced. Dry traction is pretty good, and gas mileage seems pretty decent for the most part. They do not handle overly well, and braking seems pretty questionable but honestly that can as much be the brick I drive and the mechanical characteristics of the vehicle and not necessarily the fault of the tires.
Here's the bad; these are, without a doubt, terrible tires for any off-road type adventures and if I could possibly rate these in the NEGATIVE numbers as far as winter/snow performance, I would. I'm not a serious off-roader but I do like to hit an easy fire road here and there. These tires just don't want any part of it. This winter is the first snow I've had to drive in with these tires and I have to say they are borderline dangerous. I've been driving in the snow in New England for over 30 years, including 4x4's, various cars, and even rear wheel drive vans (for work) and I don't think I've ever had worse tires in the snow. Last storm I needed to use the 4x4 to move the truck in my flat driveway with about 2" of fresh snow on the ground.
This is a pretty sad OEM tire choice for a vehicle that is, otherwise, pretty capable and sold as an "Off Road" model. Seriously, Toyota?
Bottom line; these are okay for the 4Runner that gets mall crawler duty in warmer climates, but if you plan on tackling any type of terrain other than pavement, they're not great. If you live somewhere and snow is something you deal with in your life, get something else just as soon as you can because I would consider these dangerous.
Vehicle: 2019 Toyota 4Runner TRD Off-Road Miles Driven on Tires: 5,000 Driving Conditions: Combined Off Road/Highway Location: GARDNER, MA Driving Style: Average
Treadwear disappoints with numerous low scores (0-6) citing rapid wear and premature replacement. Despite some 9s/10s, excessive wear concerns dominate feedback for this highway all-season tire, falling short of expected mileage.
August 05, 2025
1.9 out of 5
...With 8k kilometers on the tires at least half the tread is gone. Granted, OEM tires are generally softer and sacrifice longevity for comfort and price, and tires wear faster off pavement, but these probably would not last 15k kilometers which is a joke...
These tires are absolute trash. For starters, these came stock on a 2024 Suzuki Jimny and I live in the Dominican Republic where the paved roads are poor and limited. Most roads are dirt. With 8k kilometers on the tires at least half the tread is gone. Granted, OEM tires are generally softer and sacrifice longevity for comfort and price, and tires wear faster off pavement, but these probably would not last 15k kilometers which is a joke. But the worst aspect of these tires is puncture resistance. I've had FIVE flat tires so far which is ridiculous, and that's not driving OFF off road, just on the dirt roads around town. Replaced them with BF Goodrich All Terrain tires and it's like night and day; more comfortable ride, more stability, more capability. It's telling that the All terrains are literally 300% heavier. While that would be a downside on a sports car, it's not for a 4x4. TL/DR: if you have these on a 4wd vehicle, keep your jack ready and start thinking about what you're going to replace them with as the tread will be gone before you know it.
Vehicle: 2013 Suzuki Grand Vitara Limited Miles Driven on Tires: 5,000 Driving Conditions: Combined Off Road/Highway Location: GREEN COVE SPRINGS, FL Driving Style: Average
Decent tire for treadwear but tire does not do well on wet pavement ( rain, snow, or ice)...
Decent tire for treadwear but tire does not do well on wet pavement (rain, snow, or ice). We have slid around corners using this tire and had problems almost getting stuck in a few inches of snow. Will not get this tire again
Vehicle: 2016 Toyota 4Runner Trail Miles Driven on Tires: 70,000 Driving Conditions: Mostly Highway Location: JERSEYVILLE, IL Driving Style: Average
...I just replaced them at 47,000 miles because it is almost winter. They have about 5,000 more miles left on them if it was still summer which is really good especially for a tire that came from the factory... the treads wore evenly throughout the life of the tire...
These tires came on my 2015 Toyota Tacoma from the factory. I just replaced them at 47,000 miles because it is almost winter. They have about 5,000 more miles left on them if it was still summer which is really good especially for a tire that came from the factory. Overall they aren't a bad tire but they aren't great either. They squeal when cornering at speeds of 10 mph or more on dry pavement which is disappointing. However they are pretty quiet and rode decent at highway speeds. Winter traction was ok but nothing great. Had to put it in 4wd if there was anything more than a couple of inches of snow on the ground. They never hydroplaned and did well in the rain. I like the sidewall design and the treads wore evenly throughout the life of the tire. I just feel that they should perform better when cornering and during the winter for their price. There are better options out there for less money.
Vehicle: 2015 Toyota Tacoma 4wd Double Cab Miles Driven on Tires: 47,000 Driving Conditions: Mostly Highway Location: MORGAN, UT Driving Style: Average
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