Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 23 + 0 road tests and 13,381 + 5 owner reviews. How we score
Primacy 4 is ahead, 79–36
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Tests 83 · 23 tests Owners 74 · 13,381 reviews
Best test result: #1 of 20 in 2020 Auto Zeitung Summer Tyre Test (wet braking)
“Well my answer is none of the above. You choose, they are all a lottery imo. I just bought some Michelin Primacy 4 for mine today. Size 215/55 R18”
Tests – · none yet Owners 22 · 5 reviews
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Primacy 4 | Geolandar G91A |
|---|---|---|
| Professional tests (TWG score) · 21 / – tests | 85 | ≈ 49 (est.) |
| Reviews found online | 74 | 21 |
Primacy 4: 60% × 85.3 + 40% × 73.9 = 81
Geolandar G91A: 60% × 48.7 (est.) + 40% × 20.5 = 37
No road tests of dry for Geolandar G91A. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).
| Source | Primacy 4 | Geolandar G91A |
|---|---|---|
| Professional tests (TWG score) · 22 / – tests | 85 | ≈ 41 (est.) |
| Reviews found online | 76 | 19 |
Primacy 4: 60% × 84.9 + 40% × 76.2 = 81
Geolandar G91A: 60% × 41.3 (est.) + 40% × 18.9 = 32
No road tests of wet for Geolandar G91A. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).
| Source | Primacy 4 | Geolandar G91A |
|---|---|---|
| Professional tests (TWG score) | – | ≈ 58 (est.) |
| Reviews found online | – | 33 |
Geolandar G91A: 60% × 57.5 (est.) + 40% × 32.5 = 48
No road tests of snow for Geolandar G91A. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).
| Source | Primacy 4 | Geolandar G91A |
|---|---|---|
| Professional tests (TWG score) · 5 / – tests | 76 | ≈ 60 (est.) |
| Reviews found online | 74 | 14 |
Primacy 4: 60% × 76.5 + 40% × 74.2 = 76
Geolandar G91A: 60% × 59.6 (est.) + 40% × 14.1 = 41
No road tests of comfort for Geolandar G91A. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
| Source | Primacy 4 | Geolandar G91A |
|---|---|---|
| Professional tests (TWG score) · 15 / – tests | 74 | ≈ 67 (est.) |
| Reviews found online | ≈ 67 (est.) | 29 |
Primacy 4: 60% × 73.6 + 40% × 67.3 (est.) = 71
Geolandar G91A: 60% × 67.3 (est.) + 40% × 29 = 52
No owner ratings of noise for Primacy 4. The owner half is the owners’ average (67): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.
No road tests of noise for Geolandar G91A. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.
| Source | Primacy 4 | Geolandar G91A |
|---|---|---|
| Professional tests (TWG score) · 3 / – tests | 82 | ≈ 52 (est.) |
| Reviews found online | 71 | 20 |
Primacy 4: 60% × 81.7 + 40% × 70.6 = 77
Geolandar G91A: 60% × 51.6 (est.) + 40% × 20.1 = 39
No road tests of treadwear for Geolandar G91A. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).
| Source | Primacy 4 | Geolandar G91A |
|---|---|---|
| Reviews found online | 74 | 23 |
| Category | Michelin Primacy 4 | Yokohama Geolandar G91A |
|---|---|---|
| Relative Score | 79 | 36 |
| Dry | 81 | 37 |
| Wet | 81 | 32 |
| Snow | – | 48 |
| Comfort | 76 | 41 |
| Noise | 71 | 52 |
| Treadwear | 77 | 39 |
| Handling (owners) | 74 | 23 |
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.
Primacy 4
Geolandar G91A
Only categories both tires have data for count toward the headline score.
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Not enough owner reviews yet to extract themes.
From Reddit, forums and review threads. Not part of our score
Community sentiment towards the Michelin Primacy 4 is generally positive, with drivers frequently praising its quiet ride, comfort, and dependable wet and dry braking performance. Several owners note impressive longevity reaching over 50,000 to 70,000 km, though some EV and SUV drivers report accelerated wear and fragile sidewalls over rough terrain. It is commonly viewed as a premium touring tire that commands high prices compared to competitors.
“I have used Michelin tires before but recently I already have used Nankang tires. I compared Michelin and Nankang tires after testing. It was quite a pleasant surprise that the Nankang AS1 was nearly on par with the Michelin Primacy 4 in braking distance. Both tires performed exceptionally well, with the Primacy 4 only stopping slightly 3 meters shorter than the AS1.”
“Rapid wear on Michelin Primacy 4, 2017 Forester 2017 Forester in Mexico City, where there are lots of potholes and speed bumps and a LOT of rain. I got a set of Michelin Primacy 4+ tires at Costco three years ago and they've got about 30,000 kms -- 16,000 miles on them. Tread is down to about 3.5/32nds (in the middle, slightly less at the sides). The original Geolandars lasted very far beyond that in the same conditions. I'm getting a bit antsy at the tread depth. Wonder if anybody else has seen such rapid wear.”
“Well my answer is none of the above. You choose, they are all a lottery imo. I just bought some Michelin Primacy 4 for mine today. Size 215/55 R18”
Based on 44 community posts
We haven't collected enough community discussion about this tire yet.
| Attribute | A · Michelin Primacy 4 | B · Yokohama Geolandar G91A |
|---|---|---|
| Category | Summer | All-Season tire |
| Vehicle type | Passenger Car / Crossover | SUV and 4x4 |
| Sizes available | 57 | 1 |
| Rim diameters | 15″ – 20″ | 17″ |
| Tread depth | — | 10/32″ |
| UTQG | — | 280 B A |
| Sidewall | — | Blackwall |
| Max pressure | — | 44 psi |
Michelin Primacy 4
Yokohama Geolandar G91A
Winner: Michelin Primacy 4 — better handling, wet and dry. It leads or ties in every category we score. Yokohama Geolandar G91A rests on little evidence so far (0 tests, 5 reviews), so read this result as provisional.
Michelin Primacy 4 scores 74 vs 23 on handling.
Michelin Primacy 4 scores 81 vs 32 on wet.
Michelin Primacy 4 scores 81 vs 37 on dry.
Michelin Primacy 4 scores 77 vs 39 on treadwear.
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Michelin Primacy 4, 81 vs 32 on our wet score.
Michelin Primacy 4, 81 vs 37 on our dry score.
Michelin Primacy 4, 71 vs 52 on our noise score.
Michelin Primacy 4, 76 vs 41 on our comfort score.
Michelin Primacy 4, 77 vs 39 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
