Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 2 + 0 road tests and 1,647 + 973 owner reviews. How we score
Geolandar A/T G015 is ahead, 74–69
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Tests 73 · 2 tests Owners 77 · 1,647 reviews
Best test result: #1 of 8 in 2018 Auto Bild SUV All Season Tyre Test (noise)
“I put the G015 ’s on y wife’s 2020 this spring but in 225/65r17. Saved the stock wheels for snow tires . No complaints with the tires . They are super quiet. Handle fine.”
Tests – · none yet Owners 67 · 973 reviews
“Been running them on the wifes truck for 3 or 4 years now. They are a good tire, very little noise on pavement, does fine on snow. Cooper Discoverer A/T3 Review”
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Geolandar A/T G015 | Discoverer A/T3 |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 74 | ≈ 71 (est.) |
| Reviews found online | 77 | 75 |
Geolandar A/T G015: 60% × 73.6 + 40% × 76.6 = 75
Discoverer A/T3: 60% × 70.8 (est.) + 40% × 74.7 = 72
No road tests of dry for Discoverer A/T3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
| Source | Geolandar A/T G015 | Discoverer A/T3 |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 69 | ≈ 74 (est.) |
| Reviews found online | 79 | 76 |
Geolandar A/T G015: 60% × 68.9 + 40% × 79 = 73
Discoverer A/T3: 60% × 73.8 (est.) + 40% × 76.3 = 75
No road tests of wet for Discoverer A/T3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
| Source | Geolandar A/T G015 | Discoverer A/T3 |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 77 | ≈ 70 (est.) |
| Reviews found online | 73 | 68 |
Geolandar A/T G015: 60% × 76.7 + 40% × 73.4 = 75
Discoverer A/T3: 60% × 69.6 (est.) + 40% × 67.6 = 69
No road tests of snow for Discoverer A/T3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).
| Source | Geolandar A/T G015 | Discoverer A/T3 |
|---|---|---|
| Professional tests (TWG score) | ≈ 70 (est.) | ≈ 68 (est.) |
| Reviews found online | 76 | 67 |
Geolandar A/T G015: 40% × 70.3 (est.) + 60% × 76.3 = 74
Discoverer A/T3: 40% × 68.3 (est.) + 60% × 66.5 = 67
No road tests of comfort for Geolandar A/T G015. 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 Discoverer A/T3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
| Source | Geolandar A/T G015 | Discoverer A/T3 |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 75 | ≈ 66 (est.) |
| Reviews found online | 77 | 65 |
Geolandar A/T G015: 60% × 75.3 + 40% × 77.3 = 76
Discoverer A/T3: 60% × 66.3 (est.) + 40% × 65.1 = 66
No road tests of noise for Discoverer A/T3. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.
| Source | Geolandar A/T G015 | Discoverer A/T3 |
|---|---|---|
| Professional tests (TWG score) | ≈ 70 (est.) | ≈ 61 (est.) |
| Reviews found online | 77 | 52 |
Geolandar A/T G015: 60% × 70.4 (est.) + 40% × 77.2 = 73
Discoverer A/T3: 60% × 61.2 (est.) + 40% × 51.7 = 57
No road tests of treadwear for Geolandar A/T G015. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
No road tests of treadwear for Discoverer A/T3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
| Source | Geolandar A/T G015 | Discoverer A/T3 |
|---|---|---|
| Reviews found online | 73 | 65 |
| Source | Geolandar A/T G015 | Discoverer A/T3 |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 57 | – |
| Category | Yokohama Geolandar A/T G015 | Cooper Discoverer A/T3 |
|---|---|---|
| Relative Score | 74 | 69 |
| Dry | 75 | 72 |
| Wet | 73 | 75 |
| Snow | 75 | 69 |
| Comfort | 74 | 67 |
| Noise | 76 | 66 |
| Treadwear | 73 | 57 |
| Handling (owners) | 73 | 65 |
| Efficiency | 57 | – |
Higher is better. The Relative Score follows your weights below; category scores do not change.
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.
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Geolandar A/T G015
Discoverer A/T3
Only categories both tires have data for count toward the headline score.
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.
In the overall rankings of 1 tests that ran both, Yokohama Geolandar A/T G015 finished ahead 0 times and Cooper Discoverer A/T3 1 times.
| Discipline | Category | Geolandar A/T G015 | Discoverer A/T3 | Δ | Head-to-head |
|---|---|---|---|---|---|
| Also published by the testers (not in the score) | |||||
| Overall Ranking | Overall | #16/13 | #13/13 | – | 0–1 in 1 shared test Newest: 2018 SA4x4 All-Terrain Tire Test R17 · 265/65R17 |
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
From Reddit, forums and review threads. Not part of our score
Most owners praise the Geolandar A/T G015 as a quiet, comfortable all-terrain that works well on highways, in heavy rain and in snow. It also holds up well off-road and in light trails, and it looks good. Complaints include a harsh or stiff ride on some vehicles such as the Outback, road noise, soft sidewalls and a squirrely feel when towing, picking up pebbles in the tread, and a 1–2 mpg fuel economy loss.
“Yokohama Geolandar A/T G015 Snow performance. I'm currently running Yokohama Geolandar A/T G015's on my 2013 Subaru XV (WIP) and I live in a semi snowy area and also work in the mountains on construction sites in Japan. My co-workers keep telling me I need dedicated studless (Winter) tires but I had zero Issue with my current tires last year. I got a little stressed out and paranoid about it today when they mentioned it again, yet they have all had slippage on snow with their dedicated tires yet I had zero. Am I over thinking things? My co-workers are asses to be honest, but anyway I've attached some photos of the sort of conditions I drove in with zero trouble, yet they had slippage coming up the hill into the jobsite.”
“I switched to Yokohama Geolandar A/T G015 265/65R18 114H SL BSW Corrected the speedometer (normally it reads under by a few MPH with the factory tires). They are AWESOME in heavy rain conditions and snow. AT tires, so they are slightly louder than the Defenders, but not by much. Slight rub on a hard turn, but you can replace the one bolt in each of the front wheel well trims and it's all better. They look great as well. Good luck!”
“I may up the pressure to your suggestion - I'm running the door jamb recommended 39 PSI all around. I pick up little pebbles in the tread all day, every day, I notice. I have noticed a ~2 mpg loss on fuel economy, which really adds a lot to the "price" of the tires. Are you seeing any worse MPGs?”
Based on 32 community posts
The community expresses overwhelmingly positive feedback for the Cooper Discoverer A/T3, praising its strong performance on the highway, good wet and snow traction, and smooth, relatively quiet ride quality. Many users note that the tires wear well over tens of thousands of miles, though some mention that they can get slightly louder as they age and tend to pack up in deep mud. Overall, users consider them to be reliable, high-value all-terrain tires suitable for daily driving, towing, and light off-roading.
“Been running them on the wifes truck for 3 or 4 years now. They are a good tire, very little noise on pavement, does fine on snow. Cooper Discoverer A/T3 Review”
“Put a set on a day after I purchased my truck. Have about 8500 miles on them and no complaints whatsoever. Been on a 3000 trip with them not towing and a 2400 mile trip towing a 8K travel trailer. No problems on either trip. I'll get another set when these wear out, hopefully many miles down the road. No sign of wear yet!”
“I have a set of 275/60R20 on my dodge work truck. Coming up on 35k. Oilfield roads. These tires are ride smooth and are quiet. They have done well in the snow and mud for me. I will purchase a set of these for my own personal truck once needed. These are great tires.”
Based on 25 community posts
| Attribute | A · Yokohama Geolandar A/T G015 | B · Cooper Discoverer A/T3 |
|---|---|---|
| Category | All-Terrain tire | All-Terrain tire |
| Vehicle type | SUV and 4x4 | SUV and 4x4 |
| Sizes available | 90 | 14 |
| Rim diameters | 15″ – 22″ | 15″ – 22″ |
| Tread depth | 11 - 18/32″ | 14 - 17/32″ |
| UTQG | 360 - 600 A B | 560 A B |
| Sidewall | Black Side Wall - Raised Outline White Lettering | Black Side Wall - Raised Outline White Lettering |
| Max pressure | 35 - 80 psi | 44 - 80 psi |
| Sizes in common | 11 | 11 |
Yokohama Geolandar A/T G015
Cooper Discoverer A/T3
Winner: Yokohama Geolandar A/T G015 — better treadwear, noise and handling. Where the Cooper Discoverer A/T3 is ahead, it is by less than 3 points.
Yokohama Geolandar A/T G015 scores 73 vs 57 on treadwear.
Yokohama Geolandar A/T G015 scores 76 vs 66 on noise.
Yokohama Geolandar A/T G015 scores 73 vs 65 on handling.
Yokohama Geolandar A/T G015 scores 74 vs 67 on comfort.
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Neither, by our numbers: 73 vs 75 on the wet score, within 3 points.
Yokohama Geolandar A/T G015, 75 vs 72 on our dry score.
Yokohama Geolandar A/T G015, 75 vs 69 on our snow score.
Yokohama Geolandar A/T G015, 76 vs 66 on our noise score.
Yokohama Geolandar A/T G015, 74 vs 67 on our comfort score.
Yokohama Geolandar A/T G015, 73 vs 57 on our treadwear score.
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
