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Dunlop Grandtrek SJ6 vs Dunlop Grandtrek AT20 — 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 6 + 57 owner reviews. How we score

Grandtrek SJ6 is ahead, 54–44

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Dunlop Grandtrek SJ6
Tire ADunlop

Grandtrek SJ6

Winter Premium Touring tires

± 8Provisional

Tests – · none yet Owners 47 · 6 reviews

Category by category

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

  1. 52

    Dry

    Grandtrek SJ6 +11
    41
    Why this score
    SourceGrandtrek SJ6Grandtrek AT20
    Professional tests (TWG score)≈ 57 (est.)≈ 51 (est.)
    Reviews found online4327

    Grandtrek SJ6: 60% × 57.5 (est.) + 40% × 42.8 = 52

    Grandtrek AT20: 60% × 50.9 (est.) + 40% × 27.3 = 41

    No road tests of dry for Grandtrek SJ6. 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 Grandtrek AT20. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).

  2. 54

    Wet

    Grandtrek SJ6 +12
    42
    Why this score
    SourceGrandtrek SJ6Grandtrek AT20
    Professional tests (TWG score)≈ 58 (est.)≈ 49 (est.)
    Reviews found online4832

    Grandtrek SJ6: 60% × 58.2 (est.) + 40% × 48.1 = 54

    Grandtrek AT20: 60% × 49 (est.) + 40% × 31.5 = 42

    No road tests of wet for Grandtrek SJ6. 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 Grandtrek AT20. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. 58

    Snow

    Grandtrek SJ6 +9
    49
    Why this score
    SourceGrandtrek SJ6Grandtrek AT20
    Professional tests (TWG score)≈ 63 (est.)≈ 58 (est.)
    Reviews found online5136

    Grandtrek SJ6: 60% × 63.3 (est.) + 40% × 50.8 = 58

    Grandtrek AT20: 60% × 57.9 (est.) + 40% × 36.3 = 49

    No road tests of snow for Grandtrek SJ6. 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 Grandtrek AT20. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).

  4. 53

    Comfort

    Grandtrek SJ6 +10
    43
    Why this score
    SourceGrandtrek SJ6Grandtrek AT20
    Professional tests (TWG score)≈ 65 (est.)≈ 62 (est.)
    Reviews found online4630

    Grandtrek SJ6: 40% × 64.8 (est.) + 60% × 45.8 = 53

    Grandtrek AT20: 40% × 62 (est.) + 60% × 30.1 = 43

    No road tests of comfort for Grandtrek SJ6 or Grandtrek AT20. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 59

    Noise

    Grandtrek SJ6 +3
    56
    Why this score
    SourceGrandtrek SJ6Grandtrek AT20
    Professional tests (TWG score)≈ 67 (est.)≈ 67 (est.)
    Reviews found online4940

    Grandtrek SJ6: 60% × 66.6 (est.) + 40% × 48.7 = 59

    Grandtrek AT20: 60% × 66.6 (est.) + 40% × 39.7 = 56

    No road tests of noise for Grandtrek SJ6 or Grandtrek AT20. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 54

    Treadwear

    Grandtrek SJ6 +3
    51
    Why this score
    SourceGrandtrek SJ6Grandtrek AT20
    Professional tests (TWG score)≈ 59 (est.)≈ 57 (est.)
    Reviews found online4641

    Grandtrek SJ6: 60% × 59 (est.) + 40% × 45.7 = 54

    Grandtrek AT20: 60% × 57.5 (est.) + 40% × 41.2 = 51

    No road tests of treadwear for Grandtrek SJ6. 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 Grandtrek AT20. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).

  7. 47

    Handling (owners)

    Grandtrek SJ6 +14
    33
    Why this score
    SourceGrandtrek SJ6Grandtrek AT20
    Reviews found online4733
Scores at a glance
CategoryDunlop Grandtrek SJ6Dunlop Grandtrek AT20
Relative Score 54 44
Dry 52 41
Wet 54 42
Snow 58 49
Comfort 53 43
Noise 59 56
Treadwear 54 51
Handling (owners) 47 33

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
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
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Recomputed
Headline score
± 8

Grandtrek SJ6

± 7

Grandtrek AT20

Pros, cons & observations

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

Tire A Grandtrek SJ6

Pros

  • Competitive and affordable pricing
  • Good performance in snow, wet, and dry conditions
  • Durable, meaty tread design suitable for rough roads

Cons

  • High level of road noise
  • Poor traction and grip on ice
  • Challenging handling and braking performance reported by some users
All owner themes in the Grandtrek SJ6 review

Tire B Grandtrek AT20

Pros

  • Exceptional tread life and high mileage capability (often exceeding 40,000 to 60,000+ miles)
  • Comfortable, smooth, and quiet ride on tarmac and highways
  • Good stability and predictable handling in dry, warm weather conditions

Cons

  • Extremely poor and potentially unsafe traction on wet roads, leading to sliding and long braking distances
  • Unreliable or hazardous performance in winter conditions like snow and ice
  • Subpar off-road capabilities, including low puncture resistance on gravel and poor traction in mud or sand
All owner themes in the Grandtrek AT20 review

Specs side by side

Attribute A · Dunlop Grandtrek SJ6 B · Dunlop Grandtrek AT20
CategoryWinter Premium Touring tiresAll-Terrain tire
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available19
Rim diameters16″15″ – 18″
Tread depth13/32″—
SidewallBlackwallBlackwall
Max pressure44 psi—

Which one should you actually buy?

Dunlop Grandtrek SJ6

Dunlop Grandtrek AT20

Winner: Dunlop Grandtrek SJ6 — better handling, wet and dry. It leads or ties in every category we score. Dunlop Grandtrek SJ6 rests on little evidence so far (0 tests, 6 reviews), so read this result as provisional.

Pick tire A You enjoy sharp, responsive handling

Dunlop Grandtrek SJ6 scores 47 vs 33 on handling.

Pick tire A Your priority is wet-weather safety

Dunlop Grandtrek SJ6 scores 54 vs 42 on wet.

Pick tire A You want the most grip on dry roads

Dunlop Grandtrek SJ6 scores 52 vs 41 on dry.

Pick tire A You want the most comfortable ride

Dunlop Grandtrek SJ6 scores 53 vs 43 on comfort.

Tire A · Dunlop Grandtrek SJ6
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Tire B · Dunlop Grandtrek AT20
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Grandtrek SJ6 or Grandtrek AT20?

Which is better in the wet, Grandtrek SJ6 or Grandtrek AT20?

Dunlop Grandtrek SJ6, 54 vs 42 on our wet score.

Which grips better on dry roads, Grandtrek SJ6 or Grandtrek AT20?

Dunlop Grandtrek SJ6, 52 vs 41 on our dry score.

Which is better in snow, Grandtrek SJ6 or Grandtrek AT20?

Dunlop Grandtrek SJ6, 58 vs 49 on our snow score.

Which is quieter, Grandtrek SJ6 or Grandtrek AT20?

Dunlop Grandtrek SJ6, 59 vs 56 on our noise score.

Which is more comfortable, Grandtrek SJ6 or Grandtrek AT20?

Dunlop Grandtrek SJ6, 53 vs 43 on our comfort score.

Which lasts longer, Grandtrek SJ6 or Grandtrek AT20?

Dunlop Grandtrek SJ6, 54 vs 51 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