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Toyo NanoEnergy R38 looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.

Head-to-head Updated

Toyo NanoEnergy R38 vs Toyo Open Country H/T — Compared

Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 0 + 0 road tests and 8 + 40 owner reviews. How we score

NanoEnergy R38 is ahead, 70–51

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Toyo NanoEnergy R38
Tire AToyo

NanoEnergy R38

Summer

Provisional

Tests – · none yet Owners 70 · 8 reviews

Category by category

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

  1. 71

    Dry

    NanoEnergy R38 +19
    52
    Why this score
    SourceNanoEnergy R38Open Country H/T
    Professional tests (TWG score)≈ 70 (est.)≈ 58 (est.)
    Reviews found online7243

    NanoEnergy R38: 60% × 69.5 (est.) + 40% × 72.2 = 71

    Open Country H/T: 60% × 57.6 (est.) + 40% × 42.6 = 52

    No road tests of dry for NanoEnergy R38. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).

    No road tests of dry for Open Country H/T. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).

  2. 72

    Wet

    NanoEnergy R38 +28
    44
    Why this score
    SourceNanoEnergy R38Open Country H/T
    Professional tests (TWG score)≈ 72 (est.)≈ 50 (est.)
    Reviews found online7334

    NanoEnergy R38: 60% × 71.7 (est.) + 40% × 73.2 = 72

    Open Country H/T: 60% × 50 (est.) + 40% × 34.4 = 44

    No road tests of wet for NanoEnergy R38. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).

    No road tests of wet for Open Country H/T. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).

  3. –

    Snow

    No comparison
    51
    Why this score
    SourceNanoEnergy R38Open Country H/T
    Professional tests (TWG score)–≈ 59 (est.)
    Reviews found online–38

    Open Country H/T: 60% × 59.2 (est.) + 40% × 37.5 = 51

    No road tests of snow for Open Country H/T. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).

  4. 69

    Comfort

    NanoEnergy R38 +13
    56
    Why this score
    SourceNanoEnergy R38Open Country H/T
    Professional tests (TWG score)≈ 69 (est.)≈ 65 (est.)
    Reviews found online6943

    NanoEnergy R38: 60% × 69.1 (est.) + 40% × 69.1 = 69

    Open Country H/T: 60% × 64.6 (est.) + 40% × 43.1 = 56

    No road tests of comfort for NanoEnergy R38 or Open Country H/T. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. –

    Noise

    No comparison
    65
    Why this score
    SourceNanoEnergy R38Open Country H/T
    Professional tests (TWG score)–≈ 67 (est.)
    Reviews found online–63

    Open Country H/T: 60% × 67.3 (est.) + 40% × 62.5 = 65

    No road tests of noise for Open Country H/T. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 65

    Treadwear

    Level
    65
    Why this score
    SourceNanoEnergy R38Open Country H/T
    Professional tests (TWG score)≈ 65 (est.)≈ 65 (est.)
    Reviews found online6564

    NanoEnergy R38: 60% × 65.3 (est.) + 40% × 64.6 = 65

    Open Country H/T: 60% × 65.2 (est.) + 40% × 64.2 = 65

    No road tests of treadwear for NanoEnergy R38. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).

    No road tests of treadwear for Open Country H/T. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).

  7. 71

    Handling (owners)

    NanoEnergy R38 +31
    40
    Why this score
    SourceNanoEnergy R38Open Country H/T
    Reviews found online7140
Scores at a glance
CategoryToyo NanoEnergy R38Toyo Open Country H/T
Relative Score 70 51
Dry 71 52
Wet 72 44
Snow – 51
Comfort 69 56
Noise – 65
Treadwear 65 65
Handling (owners) 71 40

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

Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.

Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost

Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.

Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score

NanoEnergy R38

Open Country H/T

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 NanoEnergy R38

Pros

  • Reliable wet and dry grip with predictable handling limits
  • Good value for money compared to premium brand alternatives
  • Solid longevity and mileage, with respectable tread wear reported

Cons

  • Slightly increased road noise reported by some users
  • Limited size or availability challenges noted by consumers wanting replacements
All owner themes in the NanoEnergy R38 review

Tire B Open Country H/T

Pros

  • Exceptional tread longevity and durability
  • Very low noise levels for a quiet, comfortable highway ride
  • Strong dry pavement handling and stability

Cons

  • Subpar wet weather traction, with complaints of slipping and understeer
  • Soft or wallowly sidewalls leading to vague cornering feedback
  • Poor winter/snow performance for some users, described as feeling like 'cinder-blocks' in freezing conditions
All owner themes in the Open Country H/T review

Specs side by side

Attribute A · Toyo NanoEnergy R38 B · Toyo Open Country H/T
CategorySummerAll Season
Vehicle typePassenger Car / CrossoverSUV and 4x4
Sizes available—6
Rim diameters—16″ – 20″
Tread depth—9 - 16/32″
UTQG—300 - 400 A A
Treadwear warranty—50,000 mi
Sidewall—Black Side Wall - Raised Outline White Lettering
Max pressure—51 - 80 psi

Which one should you actually buy?

Toyo NanoEnergy R38

Toyo Open Country H/T

Winner: Toyo NanoEnergy R38 — better handling, wet and dry. It leads or ties in every category we score. Toyo NanoEnergy R38 rests on little evidence so far (0 tests, 8 reviews), so read this result as provisional.

Pick tire A You enjoy sharp, responsive handling

Toyo NanoEnergy R38 scores 71 vs 40 on handling.

Pick tire A Your priority is wet-weather safety

Toyo NanoEnergy R38 scores 72 vs 44 on wet.

Pick tire A You want the most grip on dry roads

Toyo NanoEnergy R38 scores 71 vs 52 on dry.

Pick tire A You want the most comfortable ride

Toyo NanoEnergy R38 scores 69 vs 56 on comfort.

Tire A · Toyo NanoEnergy R38
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Tire B · Toyo Open Country H/T
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NanoEnergy R38 or Open Country H/T?

Which is better in the wet, NanoEnergy R38 or Open Country H/T?

Toyo NanoEnergy R38, 72 vs 44 on our wet score.

Which grips better on dry roads, NanoEnergy R38 or Open Country H/T?

Toyo NanoEnergy R38, 71 vs 52 on our dry score.

Which is more comfortable, NanoEnergy R38 or Open Country H/T?

Toyo NanoEnergy R38, 69 vs 56 on our comfort score.

Which lasts longer, NanoEnergy R38 or Open Country H/T?

Neither, by our numbers: 65 vs 65 on the treadwear score, within 3 points.

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