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Head-to-head Updated

Cooper Discoverer AT3 4S vs General Altimax Winter 3 — 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 + 5 road tests and 688 + 3 owner reviews. How we score

Discoverer AT3 4S is ahead, 79–70

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Cooper Discoverer AT3 4S
Tire ACooper

Discoverer AT3 4S

All-Terrain tire

± 6

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.”

General Altimax Winter 3
Tire BGeneral

Altimax Winter 3

Winter

± 8

Tests 69 · 5 tests Owners 73 · 3 reviews

Best test result: #4 of 20 in 2020 Auto Bild Performance Winter Tyre Test (snow traction)

Category by category

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

  1. 81

    Dry

    Discoverer AT3 4S +17
    64
    Why this score
    SourceDiscoverer AT3 4SAltimax Winter 3
    Professional tests (TWG score) · – / 1 tests≈ 76 (est.)59
    Reviews found online8872

    Discoverer AT3 4S: 60% × 76.4 (est.) + 40% × 88.4 = 81

    Altimax Winter 3: 60% × 58.7 + 40% × 71.5 = 64

    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 0.41).

  2. 85

    Wet

    Discoverer AT3 4S +14
    71
    Why this score
    SourceDiscoverer AT3 4SAltimax Winter 3
    Professional tests (TWG score) · – / 5 tests≈ 82 (est.)69
    Reviews found online9174

    Discoverer AT3 4S: 60% × 81.6 (est.) + 40% × 90.6 = 85

    Altimax Winter 3: 60% × 69.4 + 40% × 74.4 = 71

    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).

  3. 73

    Snow

    Altimax Winter 3 +5
    78
    Why this score
    SourceDiscoverer AT3 4SAltimax Winter 3
    Professional tests (TWG score) · – / 3 tests≈ 72 (est.)78
    Reviews found online7577

    Discoverer AT3 4S: 60% × 71.8 (est.) + 40% × 74.5 = 73

    Altimax Winter 3: 60% × 77.7 + 40% × 77.3 = 78

    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 0.32).

  4. 80

    Comfort

    Discoverer AT3 4S +11
    69
    Why this score
    SourceDiscoverer AT3 4SAltimax Winter 3
    Professional tests (TWG score)≈ 72 (est.)≈ 69 (est.)
    Reviews found online8569

    Discoverer AT3 4S: 40% × 72 (est.) + 60% × 85.2 = 80

    Altimax Winter 3: 40% × 68.6 (est.) + 60% × 68.6 = 69

    No road tests of comfort for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).

    No road tests of comfort for Altimax Winter 3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).

  5. 73

    Noise

    Discoverer AT3 4S +1
    72
    Why this score
    SourceDiscoverer AT3 4SAltimax Winter 3
    Professional tests (TWG score) · – / 1 tests≈ 66 (est.)76
    Reviews found online83≈ 66 (est.)

    Discoverer AT3 4S: 60% × 66.4 (est.) + 40% × 83.3 = 73

    Altimax Winter 3: 60% × 75.7 + 40% × 66.4 (est.) = 72

    No road tests of noise for Discoverer AT3 4S. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.

    No owner ratings of noise for Altimax Winter 3. The owner half is the owners’ average (66): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.

  6. 75

    Treadwear

    Discoverer AT3 4S +5
    70
    Why this score
    SourceDiscoverer AT3 4SAltimax Winter 3
    Professional tests (TWG score) · 1 / 1 tests7169
    Reviews found online8071

    Discoverer AT3 4S: 60% × 71.1 + 40% × 79.9 = 75

    Altimax Winter 3: 60% × 68.9 + 40% × 70.6 = 70

  7. 80

    Handling (owners)

    Discoverer AT3 4S +8
    72
    Why this score
    SourceDiscoverer AT3 4SAltimax Winter 3
    Reviews found online8072
  8. –

    Efficiency

    No comparison
    65
    Why this score
    SourceDiscoverer AT3 4SAltimax Winter 3
    Professional tests (TWG score) · – / 1 tests–65
Scores at a glance
CategoryCooper Discoverer AT3 4SGeneral Altimax Winter 3
Relative Score 79 70
Dry 81 64
Wet 85 71
Snow 73 78
Comfort 80 69
Noise 73 72
Treadwear 75 70
Handling (owners) 80 72
Efficiency – 65

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

Weight the categories that matter to you

Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.

Important
NotLessNeutralImportantMost
Important
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Neutral
NotLessNeutralImportantMost
Less important
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Less important
NotLessNeutralImportantMost
Important
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Not important
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Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.

Recomputed
Headline score
± 6

Discoverer AT3 4S

± 8

Altimax Winter 3

Only categories both tires have data for count toward the headline score.

The professional test results behind the scores

Per discipline: the average % of the best tire over every test both tires were in, and how many of those tests each one won. “Different tests” rows compare results from separate tests.

DisciplineCategoryDiscoverer AT3 4SAltimax Winter 3ΔHead-to-head
Also published by the testers (not in the score)
Overall Ranking Overall #5/18 2022 Consumer Reports All Terrain Truck Tires #35/56 2022 Winter Tyre Market Overview – Different tests

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 Altimax Winter 3

Pros

  • Strong performance in snow and slush conditions
  • Effective resistance to aquaplaning
  • Competitive price-to-quality ratio

Cons

  • Increased road noise at highway speeds
  • Soft sidewalls resulting in vague handling and road feedback
  • Mediocre emergency wet braking performance
All owner themes in the Altimax Winter 3 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.”
r/SubaruForester ·4 upvotes ·2022-12-02

“Cooper Discoverer AT3 4S discontinued, good alternative? I was hoping to replace my stock tires with the Discoverer AT3 tires since I hear really good things about them and they are a bit more aggressive. Seems like they are discontinued at all the normal tire shops online. So what are my alternatives for an AT style tire? Looking for 235/60R17 to put on Drag DR-31 rims. I live in CO so snow and some light off roading are things to consider. Read more”
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

General Altimax Winter 3

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

Specs side by side

Attribute A · Cooper Discoverer AT3 4S B · General Altimax Winter 3
CategoryAll-Terrain tireWinter
Vehicle typeSUV and 4x4Passenger Car / Crossover
Sizes available1438
Rim diameters15″ – 22″13″ – 19″
Tread depth12 - 14/32″—
UTQG620 A B—
Treadwear warranty65,000 mi—
SidewallBlack Side Wall - Raised Outline White Lettering—
Max pressure44 - 50 psi—
Sizes in common00

Which one should you actually buy?

Cooper Discoverer AT3 4S

General Altimax Winter 3

Winner: Cooper Discoverer AT3 4S — better dry, wet and comfort. Pick the General Altimax Winter 3 if snow matters most to you.

Pick tire A You want the most grip on dry roads

Cooper Discoverer AT3 4S scores 81 vs 64 on dry.

Pick tire A Your priority is wet-weather safety

Cooper Discoverer AT3 4S scores 85 vs 71 on wet.

Pick tire A You want the most comfortable ride

Cooper Discoverer AT3 4S scores 80 vs 69 on comfort.

Pick tire A You enjoy sharp, responsive handling

Cooper Discoverer AT3 4S scores 80 vs 72 on handling.

Tire A · Cooper Discoverer AT3 4S
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Tire B · General Altimax Winter 3
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Discoverer AT3 4S or Altimax Winter 3?

Which is better in the wet, Discoverer AT3 4S or Altimax Winter 3?

Cooper Discoverer AT3 4S, 85 vs 71 on our wet score.

Which grips better on dry roads, Discoverer AT3 4S or Altimax Winter 3?

Cooper Discoverer AT3 4S, 81 vs 64 on our dry score.

Which is better in snow, Discoverer AT3 4S or Altimax Winter 3?

General Altimax Winter 3, 78 vs 73 on our snow score.

Which is quieter, Discoverer AT3 4S or Altimax Winter 3?

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

Which is more comfortable, Discoverer AT3 4S or Altimax Winter 3?

Cooper Discoverer AT3 4S, 80 vs 69 on our comfort score.

Which lasts longer, Discoverer AT3 4S or Altimax Winter 3?

Cooper Discoverer AT3 4S, 75 vs 70 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