Tests – · 1 test Owners 81 · 688 reviews
Best test result: #5 of 18 in 2022 Consumer Reports All Terrain Truck Tires (overall ranking)
“New tire day. Cooper Discoverer AT3 4S. So far so good. They ride great and they’re really quiet.”
Head-to-head
Updated
Cooper Discoverer AT3 4S vs Michelin X Ice Snow — Compared
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Discoverer AT3 4S leads, 76–72 Narrow edge
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Tests 70 · 13 tests Owners 75 · 19 reviews
Best test result: #7 of 10 in 2026 Tire Rack All-Weather vs Winter Tyre Test (overall ranking)
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
-
78
Dry
Discoverer AT3 4S +1167Why this score
Source Discoverer AT3 4S X Ice Snow Professional tests (TWG score) – 65 Reviews found online 84 70 -
82
Wet
Discoverer AT3 4S +1369Why this score
Source Discoverer AT3 4S X Ice Snow Professional tests (TWG score) – 64 Reviews found online 86 77 -
72
Snow
X Ice Snow +476Why this score
Source Discoverer AT3 4S X Ice Snow Professional tests (TWG score) – 73 Reviews found online 74 80 -
76
Comfort
X Ice Snow +480Why this score
Source Discoverer AT3 4S X Ice Snow Professional tests (TWG score) – 82 Reviews found online 83 78 -
72
Noise
X Ice Snow +274Why this score
Source Discoverer AT3 4S X Ice Snow Professional tests (TWG score) – 80 Reviews found online 81 – -
73
Treadwear
Discoverer AT3 4S +172Why this score
Source Discoverer AT3 4S X Ice Snow Professional tests (TWG score) 71 – Reviews found online 77 76 -
77
Handling
Discoverer AT3 4S +374Why this score
Source Discoverer AT3 4S X Ice Snow Reviews found online 77 74
Scores at a glance
| Category | Cooper Discoverer AT3 4S | Michelin X Ice Snow |
|---|---|---|
| Relative Score | 76 | 72 |
| Dry | 78 | 67 |
| Wet | 82 | 69 |
| Snow | 72 | 76 |
| Comfort | 76 | 80 |
| Noise | 72 | 74 |
| Treadwear | 73 | 72 |
| 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
76
/ 100
Discoverer AT3 4S
72
/ 100
X Ice Snow
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.
| Discipline | Category | Discoverer AT3 4S | X Ice Snow | Δ | Head-to-head |
|---|---|---|---|---|---|
| Overall Ranking | Overall | #5/18 2022 Consumer Reports All Terrain Truck Tires | #7/10 2026 Tire Rack All-Weather vs Winter Tyre Test | – | 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
Tire B X Ice Snow
Pros
- Exceptional traction and lateral grip in deep snow and slush
- High level of confidence and stability on icy surfaces
- Excellent tread life and durability over multiple seasons
Cons
- Average performance and handling on dry or wet pavement
- Increased road noise as the tires wear over time
- Can feel slightly 'twitchy' or less stable at the absolute limit of handling
What real owners are saying
From Reddit, forums and review threads. Not part of our score
Tire A
Positive
Cooper Discoverer AT3 4S
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/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”
bobistheoilguy.com
·2019-06-26
“I ran a set of Cooper Discoverer AT3's over 72k miles and never had an issue. loved them. now i have a set of Cooper Discoverer AT3 4S's and they are even better in traction and ride.”
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
Michelin X Ice Snow
We haven't collected enough community discussion about this tire yet.
Specs side by side
| Attribute | A · Cooper Discoverer AT3 4S | B · Michelin X Ice Snow |
|---|---|---|
| Category | All Season | Winter |
| Vehicle type | SUV and 4x4 | Passenger Car / Crossover |
| Sizes available | 14 | 100 |
| Rim diameters | 15″ – 22″ | 13″ – 21″ |
| Tread depth | 12 - 14/32″ | — |
| UTQG | 620 A B | — |
| Treadwear warranty | 65,000 mi | — |
| Sidewall | Black Side Wall - Raised Outline White Lettering | — |
| Max pressure | 44 - 50 psi | — |
Which one should you actually buy?
76
/ 100
Cooper Discoverer AT3 4S
72
/ 100
Michelin X Ice Snow
Winner: Cooper Discoverer AT3 4S — better wet, dry and handling. Pick the Michelin X Ice Snow if snow and comfort matter most to you.
Pick tire A
Your priority is wet-weather safety
Cooper Discoverer AT3 4S scores 82 vs 69 on wet.
Pick tire A
You want the most grip on dry roads
Cooper Discoverer AT3 4S scores 78 vs 67 on dry.
Pick tire B
You drive through snowy winters
Michelin X Ice Snow scores 76 vs 72 on snow.
Pick tire B
You want the most comfortable ride
Michelin X Ice Snow scores 80 vs 76 on comfort.
Tire A · Cooper Discoverer AT3 4S
Tire B · Michelin X Ice Snow
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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.