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Cooper Discoverer AT3 XLT vs Goodyear Wrangler TrailRunner AT — 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 0 + 0 road tests and 800 + 46 owner reviews. How we score

Discoverer AT3 XLT is ahead, 78–66

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Cooper Discoverer AT3 XLT
Tire ACooper

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. 80

    Dry

    Discoverer AT3 XLT +13
    67
    Why this score
    SourceDiscoverer AT3 XLTWrangler TrailRunner AT
    Professional tests (TWG score)≈ 76 (est.)≈ 67 (est.)
    Reviews found online8666

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

    Wrangler TrailRunner AT: 60% × 67.3 (est.) + 40% × 66.2 = 67

    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).

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

  2. 83

    Wet

    Discoverer AT3 XLT +13
    70
    Why this score
    SourceDiscoverer AT3 XLTWrangler TrailRunner AT
    Professional tests (TWG score)≈ 80 (est.)≈ 71 (est.)
    Reviews found online8870

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

    Wrangler TrailRunner AT: 60% × 70.5 (est.) + 40% × 70.3 = 70

    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).

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

  3. 72

    Snow

    Discoverer AT3 XLT +7
    65
    Why this score
    SourceDiscoverer AT3 XLTWrangler TrailRunner AT
    Professional tests (TWG score)≈ 71 (est.)≈ 68 (est.)
    Reviews found online7262

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

    Wrangler TrailRunner AT: 60% × 67.5 (est.) + 40% × 62 = 65

    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).

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

  4. 77

    Comfort

    Discoverer AT3 XLT +12
    65
    Why this score
    SourceDiscoverer AT3 XLTWrangler TrailRunner AT
    Professional tests (TWG score)≈ 71 (est.)≈ 68 (est.)
    Reviews found online8164

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

    Wrangler TrailRunner AT: 40% × 68.1 (est.) + 60% × 63.5 = 65

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

  5. 73

    Noise

    Discoverer AT3 XLT +4
    69
    Why this score
    SourceDiscoverer AT3 XLTWrangler TrailRunner AT
    Professional tests (TWG score)≈ 67 (est.)≈ 67 (est.)
    Reviews found online8373

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

    Wrangler TrailRunner AT: 60% × 66.6 (est.) + 40% × 72.6 = 69

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

  6. 74

    Treadwear

    Discoverer AT3 XLT +9
    65
    Why this score
    SourceDiscoverer AT3 XLTWrangler TrailRunner AT
    Professional tests (TWG score)≈ 71 (est.)≈ 66 (est.)
    Reviews found online7964

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

    Wrangler TrailRunner AT: 60% × 65.5 (est.) + 40% × 64.4 = 65

    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).

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

  7. 78

    Handling (owners)

    Discoverer AT3 XLT +24
    54
    Why this score
    SourceDiscoverer AT3 XLTWrangler TrailRunner AT
    Reviews found online7854
Scores at a glance
CategoryCooper Discoverer AT3 XLTGoodyear Wrangler TrailRunner AT
Relative Score 78 66
Dry 80 67
Wet 83 70
Snow 72 65
Comfort 77 65
Noise 73 69
Treadwear 74 65
Handling (owners) 78 54

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

Discoverer AT3 XLT

± 7

Wrangler TrailRunner AT

Pros, cons & observations

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

Tire A 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

Tire B Wrangler TrailRunner AT

Pros

  • Exceptionally low road noise for an all-terrain tire
  • Smooth and comfortable highway ride quality
  • Strong wet weather traction and reliable braking

Cons

  • Less aggressive off-road and mud performance compared to dedicated heavy-duty A/T tires
  • Subpar winter and snow traction according to select reviewers
  • Occasional reports of balancing issues requiring significant lead weights
All owner themes in the Wrangler TrailRunner AT review

What real owners are saying

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

Tire A

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

Tire B

Goodyear Wrangler TrailRunner AT

We haven't collected enough community discussion about this tire yet.

Specs side by side

Attribute A · Cooper Discoverer AT3 XLT B · Goodyear Wrangler TrailRunner AT
CategoryAll-Terrain tireAll-Terrain tire
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available43
Rim diameters16″ – 20″15″ – 20″
Tread depth16 - 18/32″11 - 15/32″
UTQG—580 A B
Treadwear warranty60,000 mi55,000 mi
SidewallBlack Side Wall - Raised White LetteringRaised Outline White Lettering - Serrated Black Lettering
Max pressure35 - 80 psi51 - 80 psi
Sizes in common00

Which one should you actually buy?

Cooper Discoverer AT3 XLT

Goodyear Wrangler TrailRunner AT

Winner: Cooper Discoverer AT3 XLT — better handling, dry and wet. It leads or ties in every category we score.

Pick tire A You enjoy sharp, responsive handling

Cooper Discoverer AT3 XLT scores 78 vs 54 on handling.

Pick tire A You want the most grip on dry roads

Cooper Discoverer AT3 XLT scores 80 vs 67 on dry.

Pick tire A Your priority is wet-weather safety

Cooper Discoverer AT3 XLT scores 83 vs 70 on wet.

Pick tire A You want the most comfortable ride

Cooper Discoverer AT3 XLT scores 77 vs 65 on comfort.

Tire A · Cooper Discoverer AT3 XLT
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Tire B · Goodyear Wrangler TrailRunner AT
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Discoverer AT3 XLT or Wrangler TrailRunner AT?

Which is better in the wet, Discoverer AT3 XLT or Wrangler TrailRunner AT?

Cooper Discoverer AT3 XLT, 83 vs 70 on our wet score.

Which grips better on dry roads, Discoverer AT3 XLT or Wrangler TrailRunner AT?

Cooper Discoverer AT3 XLT, 80 vs 67 on our dry score.

Which is better in snow, Discoverer AT3 XLT or Wrangler TrailRunner AT?

Cooper Discoverer AT3 XLT, 72 vs 65 on our snow score.

Which is quieter, Discoverer AT3 XLT or Wrangler TrailRunner AT?

Cooper Discoverer AT3 XLT, 73 vs 69 on our noise score.

Which is more comfortable, Discoverer AT3 XLT or Wrangler TrailRunner AT?

Cooper Discoverer AT3 XLT, 77 vs 65 on our comfort score.

Which lasts longer, Discoverer AT3 XLT or Wrangler TrailRunner AT?

Cooper Discoverer AT3 XLT, 74 vs 65 on our treadwear score.

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