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Cooper Discoverer AT3 4S vs Dunlop Direzza DZ03 — Compared

Relative Score (0–100): 60% professional tests, 40% owner reviews.

Discoverer AT3 4S is ahead, 77–68

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Tire ACooper

Discoverer AT3 4S

All Season

Tests – · 1 test Owners 81 · 688 reviews

“Quote: Originally Posted by ArizonaF1Fiddy I went with the Cooper Discoverer AT3 4s (275/65/18). The Michelin Primacy XC were on there when I purchased and they were terrible. I like the looks of the Coopers...the ride is much more controlled and a bit softer over broken surfaces. They do have some slip off the line of you give it full throttle real similar to the XCs. I was looking for an AT that would be great at hooking up in dry weather but probably not gong to find an AT that is sticky enough. They're brand-new so I'll give an update after a few hundred miles or so (I don't put a lot of miles so it'll take time). Thanks to the Forum for the info! This looks nice!”

Category by category

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

  1. 78

    Dry

    Discoverer AT3 4S +5
    73
    Why this score
    SourceDiscoverer AT3 4SDirezza DZ03
    Reviews found online8476
  2. 82

    Wet

    Discoverer AT3 4S +16
    66
    Why this score
    SourceDiscoverer AT3 4SDirezza DZ03
    Reviews found online8665
  3. 72

    Snow

    No comparison
    –
    Why this score
    SourceDiscoverer AT3 4SDirezza DZ03
    Reviews found online74–
  4. 76

    Comfort

    Discoverer AT3 4S +16
    60
    Why this score
    SourceDiscoverer AT3 4SDirezza DZ03
    Reviews found online8351
  5. 72

    Noise

    No comparison
    –
    Why this score
    SourceDiscoverer AT3 4SDirezza DZ03
    Reviews found online81–
  6. 73

    Treadwear

    Discoverer AT3 4S +10
    63
    Why this score
    SourceDiscoverer AT3 4SDirezza DZ03
    Professional tests (TWG score)71–
    Reviews found online7762
  7. 77

    Handling

    Discoverer AT3 4S +3
    74
    Why this score
    SourceDiscoverer AT3 4SDirezza DZ03
    Reviews found online7774
Scores at a glance
CategoryCooper Discoverer AT3 4SDunlop Direzza DZ03
Relative Score 77 68
Dry 78 73
Wet 82 66
Snow 72 –
Comfort 76 60
Noise 72 –
Treadwear 73 63
Handling 77 74

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.

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Recomputed
Headline score

Discoverer AT3 4S

Direzza DZ03

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

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 Direzza DZ03

Pros

  • Exceptional dry grip and cornering confidence
  • Significant lap time improvements compared to entry-level semi-slicks
  • High durability and consistent performance under intense heat cycles

Cons

  • Extremely high road noise, often compared to failing wheel bearings
  • Rapid tread wear and short lifespan
  • Poor performance in standing water with high risk of aquaplaning
All owner themes in the Direzza DZ03 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/DubaiPetrolHeads ·1 upvote ·2026-01-20

“Cooper Discoverer AT3 4s I am struggling to find Cooper Discoverer AT3 4s tyres with size 265/70/17. There seemed to be an acute shortage in the market. I am not keen on BF Goodrich due to the weight and price. I shall appreciate it if anyone with reliable leads for Cooper tyres. What else do you recommend if Cooper is just not realistically available? I can wait till March before I need to get my car tested for renewal of registration. TIA.”
r/JeepRenegade ·6 upvotes ·2020-08-24

“New tires: Cooper Discoverer AT3 4S Needed a 3PMSF tire and these Coopers edged out the Wildpeak AT3Ws based on wear rating and highway performance. Also, Cooper has a promo right now for a $70 mail in rebate. MPG has been about the same, maybe slightly better. Visually, I like them, more rugged than the stock Falkens. Highway and forest road driving has been solid. Stock size, 215/65R17, on a 2020 TH: Read more”
bobistheoilguy.com ·5 upvotes ·2020-09-02

“I went with Cooper Discoverer AT3 4S for the Touareg and couldn't be happier. Made in the USA to boot!”
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

Dunlop Direzza DZ03

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

Specs side by side

Attribute A · Cooper Discoverer AT3 4S B · Dunlop Direzza DZ03
CategoryAll SeasonSummer
Vehicle typeSUV and 4x4Passenger Car / Crossover
Sizes available14—
Rim diameters15″ – 22″—
Tread depth12 - 14/32″—
UTQG620 A B—
Treadwear warranty65,000 mi—
SidewallBlack Side Wall - Raised Outline White Lettering—
Max pressure44 - 50 psi—

Which one should you actually buy?

Cooper Discoverer AT3 4S

Dunlop Direzza DZ03

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

Pick tire A Your priority is wet-weather safety

Cooper Discoverer AT3 4S scores 82 vs 66 on wet.

Pick tire A You want the most comfortable ride

Cooper Discoverer AT3 4S scores 76 vs 60 on comfort.

Pick tire A You want the longest tread life

Cooper Discoverer AT3 4S scores 73 vs 63 on treadwear.

Pick tire A You want the most grip on dry roads

Cooper Discoverer AT3 4S scores 78 vs 73 on dry.

Tire A · Cooper Discoverer AT3 4S
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Tire B · Dunlop Direzza DZ03
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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.

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

77

Leads

Discoverer AT3 4S

Amazon