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Cooper Discoverer AT3 4S vs Cooper Discoverer AT3 XLT — Compared

Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 1 + 0 road tests and 688 + 800 owner reviews. How we score

Discoverer AT3 4S leads, 80–78 Narrow edge

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Cooper Discoverer AT3 4S
Tire ACooper

Discoverer AT3 4S

All-Terrain tire

± 7

Tests – · 1 test Owners 84 · 688 reviews

Best test result: #5 of 18 in 2022 Consumer Reports All Terrain Truck Tires (tested tread life (miles))

“Got some 225/75/16 Cooper Discoverer AT3 4s - Great fit on stock setup.”

Cooper Discoverer AT3 XLT
Tire BCooper

Discoverer AT3 XLT

All-Terrain tire

± 7

Tests – · none yet Owners 82 · 800 reviews

“New shoes this week, Cooper Discoverer At3 XLT. I’m really impressed so far.”

Category by category

Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.

  1. 82

    Dry

    Discoverer AT3 4S +2
    80
    Why this score
    SourceDiscoverer AT3 4SDiscoverer AT3 XLT
    Professional tests (TWG score)≈ 77 (est.)≈ 76 (est.)
    Reviews found online8986

    Discoverer AT3 4S: 60% × 76.8 (est.) + 40% × 88.8 = 82

    Discoverer AT3 XLT: 60% × 75.6 (est.) + 40% × 86 = 80

    No road tests of dry for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).

    No road tests of dry for Discoverer AT3 XLT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).

  2. 86

    Wet

    Discoverer AT3 4S +3
    83
    Why this score
    SourceDiscoverer AT3 4SDiscoverer AT3 XLT
    Professional tests (TWG score)≈ 82 (est.)≈ 80 (est.)
    Reviews found online9188

    Discoverer AT3 4S: 60% × 81.9 (est.) + 40% × 90.9 = 86

    Discoverer AT3 XLT: 60% × 80.1 (est.) + 40% × 87.7 = 83

    No road tests of wet for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

    No road tests of wet for Discoverer AT3 XLT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. 73

    Snow

    Discoverer AT3 4S +1
    72
    Why this score
    SourceDiscoverer AT3 4SDiscoverer AT3 XLT
    Professional tests (TWG score)≈ 72 (est.)≈ 71 (est.)
    Reviews found online7572

    Discoverer AT3 4S: 60% × 72.4 (est.) + 40% × 75 = 73

    Discoverer AT3 XLT: 60% × 71.3 (est.) + 40% × 72.2 = 72

    No road tests of snow for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).

    No road tests of snow for Discoverer AT3 XLT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).

  4. 80

    Comfort

    Discoverer AT3 4S +3
    77
    Why this score
    SourceDiscoverer AT3 4SDiscoverer AT3 XLT
    Professional tests (TWG score)≈ 72 (est.)≈ 71 (est.)
    Reviews found online8681

    Discoverer AT3 4S: 40% × 72.2 (est.) + 60% × 85.8 = 80

    Discoverer AT3 XLT: 40% × 71.3 (est.) + 60% × 80.9 = 77

    No road tests of comfort for Discoverer AT3 4S or Discoverer AT3 XLT. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 73

    Noise

    Level
    73
    Why this score
    SourceDiscoverer AT3 4SDiscoverer AT3 XLT
    Professional tests (TWG score)≈ 67 (est.)≈ 67 (est.)
    Reviews found online8483

    Discoverer AT3 4S: 60% × 66.6 (est.) + 40% × 83.5 = 73

    Discoverer AT3 XLT: 60% × 66.6 (est.) + 40% × 82.7 = 73

    No road tests of noise for Discoverer AT3 4S or Discoverer AT3 XLT. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 75

    Treadwear

    Discoverer AT3 4S +1
    74
    Why this score
    SourceDiscoverer AT3 4SDiscoverer AT3 XLT
    Professional tests (TWG score) · 1 / – tests71≈ 71 (est.)
    Reviews found online8079

    Discoverer AT3 4S: 60% × 71.1 + 40% × 79.6 = 75

    Discoverer AT3 XLT: 60% × 70.7 (est.) + 40% × 79.3 = 74

    No road tests of treadwear for Discoverer AT3 XLT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).

  7. 81

    Handling (owners)

    Discoverer AT3 4S +3
    78
    Why this score
    SourceDiscoverer AT3 4SDiscoverer AT3 XLT
    Reviews found online8178
Scores at a glance
CategoryCooper Discoverer AT3 4SCooper Discoverer AT3 XLT
Relative Score 80 78
Dry 82 80
Wet 86 83
Snow 73 72
Comfort 80 77
Noise 73 73
Treadwear 75 74
Handling (owners) 81 78

Higher is better. The Relative Score follows your weights below; category scores do not change.

Weight the categories that matter to you

Wet grip starts at “Important”. Treadwear starts at “Neutral” here: road tests measured it for at most one of the two tires, so it rests on owner reviews. Move the sliders and the scores update instantly.

Important
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Neutral
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Less important
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Neutral
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Less important
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Recomputed
Headline score
± 7

Discoverer AT3 4S

± 7

Discoverer AT3 XLT

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A Discoverer AT3 4S

Pros

  • Exceptionally quiet and smooth on-road ride compared to typical all-terrain tires
  • Superb traction in wet, rainy, and deep winter snow conditions
  • Strong value and competitive pricing relative to performance and lifespan

Cons

  • Potential for accelerated tread wear under heavy off-road use or demanding mountain driving
  • Occasional reports of balancing issues or out-of-round tires requiring multiple adjustments
  • Minor fuel economy drop or increased rolling resistance when switching from standard highway tires
All owner themes in the Discoverer AT3 4S review

Tire B Discoverer AT3 XLT

Pros

  • Significantly lower road noise than comparable aggressive all-terrain tires
  • Excellent wet weather, snow, and slush traction
  • Sturdy sidewalls and stable performance when towing heavy loads

Cons

  • Some users report difficulty with balancing, leading to vibrations or a rough ride
  • Tread life occasionally falls short of expectations for certain drivers
  • Can struggle or get gummed up in deep mud
All owner themes in the Discoverer AT3 XLT review

What real owners are saying

From Reddit, forums and review threads. Not part of our score

Tire A

Cooper Discoverer AT3 4S

Positive

Community sentiment for the Cooper Discoverer AT3 4S is predominantly positive, with drivers praising its quiet highway ride, strong traction across snow, rain, and dry pavement, and appealing appearance. Several owners note that while it handles light off-road duties and daily driving well, tread life occasionally falls short of mileage expectations. In addition, multiple posts highlight frustration and concern regarding availability and recent discontinuation across various sizes.

r/subaru ·130 upvotes ·2019-04-20

“New tires 👌 cooper discoverer at3 4s 215/70/16”
r/f150 ·23 upvotes ·2022-09-03

“New tire day. Cooper Discoverer AT3 4S. So far so good. They ride great and they’re really quiet.”
ramforum.com ·2021-11-29

“I bought the Cooper Discoverer at3 4s, very good tire, great price and an ideal all terrain tire. Living in Canada, we get snow, slush, rain and this tire works excellent in all those scenario's. This is the second time I have purchased these, quite pleased with them for traction, appearance and road noise.”
Top themes
#Snow and wet traction#Quiet highway ride#Tread life and longevity#Discontinuation and availability#Comfortable ride quality#Mild off-road performance

Based on 27 community posts

Tire B

Cooper Discoverer AT3 XLT

Positive

Community members report high satisfaction with the Cooper Discoverer AT3 XLT, highlighting its quiet ride, long tread life, and strong winter performance. Several owners praise its smooth ride quality and durability under towing conditions compared to rival all-terrain tires. Discussion also commonly centers around sizing, fitment, and snow ratings.

r/Offroad ·1 upvote ·2025-10-02

“I’ve run Hankook dynapro’s, BFG ko2, Nokian outpost nat, and fallen wild peaks. Currently running Cooper discoverer AT3 XLT - they are definitely the quietest all terrains I’ve had. I would recommend them if they are available in your size - many places like simpletire or priority tire carry them.”
r/f150 ·51 upvotes ·2021-12-30

“New shoes this week, Cooper Discoverer At3 XLT. I’m really impressed so far.”
r/ram_trucks ·22 upvotes ·2021-11-19

“New Cooper Discoverer AT3 XLT 275/75R20 these ride way better than my old Open Country A/T II”
Top themes
#low road noise#tread longevity and wear#snow and winter traction#tire sizing and fitment#ride quality and comfort#towing performance

Based on 13 community posts

Specs side by side

Attribute A · Cooper Discoverer AT3 4S B · Cooper Discoverer AT3 XLT
CategoryAll-Terrain tireAll-Terrain tire
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available144
Rim diameters15″ – 22″16″ – 20″
Tread depth12 - 14/32″16 - 18/32″
UTQG620 A B—
Treadwear warranty65,000 mi60,000 mi
SidewallBlack Side Wall - Raised Outline White LetteringBlack Side Wall - Raised White Lettering
Max pressure44 - 50 psi35 - 80 psi
Sizes in common11

Which one should you actually buy?

Cooper Discoverer AT3 4S

Cooper Discoverer AT3 XLT

Narrow edge: Cooper Discoverer AT3 4S — better wet and comfort. It leads or ties in every category we score.

Pick tire A Your priority is wet-weather safety

Cooper Discoverer AT3 4S scores 86 vs 83 on wet.

Pick tire A You want the most comfortable ride

Cooper Discoverer AT3 4S scores 80 vs 77 on comfort.

Tire A · Cooper Discoverer AT3 4S
Check price on Amazon
Tire B · Cooper Discoverer AT3 XLT
Check price on Amazon

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Discoverer AT3 4S or Discoverer AT3 XLT?

Which is better in the wet, Discoverer AT3 4S or Discoverer AT3 XLT?

Cooper Discoverer AT3 4S, 86 vs 83 on our wet score.

Which grips better on dry roads, Discoverer AT3 4S or Discoverer AT3 XLT?

Neither, by our numbers: 82 vs 80 on the dry score, within 3 points.

Which is better in snow, Discoverer AT3 4S or Discoverer AT3 XLT?

Neither, by our numbers: 73 vs 72 on the snow score, within 3 points.

Which is quieter, Discoverer AT3 4S or Discoverer AT3 XLT?

Neither, by our numbers: 73 vs 73 on the noise score, within 3 points.

Which is more comfortable, Discoverer AT3 4S or Discoverer AT3 XLT?

Cooper Discoverer AT3 4S, 80 vs 77 on our comfort score.

Which lasts longer, Discoverer AT3 4S or Discoverer AT3 XLT?

Neither, by our numbers: 75 vs 74 on the treadwear score, within 3 points.

How do we compare tires?

Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements), each result compared with every other tire in the same test and newer tests counting more. 40% comes from owner reviews found online, adjusted for how generously each site rates. Both use one scale: the average tested tire gets 70, the best 100. When a tire has only one of the two, the missing half is estimated from the other and the score stays closer to average; with no road test and fewer than five owner reviews it gets no score yet.

Handling is the exception: road tests measure it inside the dry and wet scores, so its own row comes from owner ratings only and starts as less important.

Community buzz from Reddit and forums is shown for context only — it never changes the score. Full methodology