Radar Dimax AS-8 255/55R18

Radar Dimax AS-8 255/55R18 XL 109W Grand Touring All-Season Tire DSC0389

🌀️ All SeasonπŸ“ 255/55R18πŸš— Passenger Car

πŸ’‘ Is the Radar Dimax AS-8 255/55R18 a Good Tire?

Yes β€” the Radar 255/55R18 is an Excellent-rated all-season grand touring tire (40 surveys) suited for mid-size SUVs and crossovers. Solid all-season versatility with grand touring comfort, though the limited survey sample size reduces confidence in long-term reliability data.

Compare 255/55R18 Tires β†’

About This Tire

The Radar Dimax AS-8 255/55R18 is a grand touring all-season tire, designed for drivers of performance sedans, sporty coupes, crossovers, and SUVs who prioritize fuel efficiency and ride comfort in everyday driving. Its asymmetric tread design and silica-enriched compound focus on providing balanced traction across wet and dry conditions while maintaining long treadwear.

The tire features circumferential grooves and independent tread blocks for hydroplaning resistance, while a continuous center rib promotes highway stability and quiet operation. Lateral sipes distributed across the tread enhance grip in wet and light snow conditions, and the rounder shoulder design provides progressive cornering response. Driver feedback points to strong wet and dry performance, with comfortable ride quality and reliable treadwear standing out in daily use.

Compared to performance-oriented tires, it emphasizes comfort, stability, and long-term usability. Overall, it's a solid choice for crossovers, SUVs, and sedans used primarily for highway commuting and daily driving in varied weather conditions.

πŸ“Š Compare 255/55R18 Tires

β˜… Currently viewing: Radar Dimax AS-8 255/55R18

These tires share the same size (255/55R18) and are sorted by expert rating for easier comparison.

TireRatingBest ForSeason
β˜…Radar Dimax AS-8 255/55R18
πŸ›£οΈ Comfort-focused touring
⭐ Excellent (40 reviews)Daily highway commuting and city driving🌀️ All Season
πŸ›£οΈ Comfort-focused touring
⭐ Excellent (219 reviews)Daily highway commuting and city driving🌀️ All Season
β˜€οΈ Summer performance
⭐ Excellent (85 reviews)Performance SUV daily drivingβ˜€οΈ Summer
πŸ›£οΈ Touring all-season
⭐ Good (622 reviews)Daily highway commuting in crossovers and SUVs🌀️ All Season
🌀️ All-season versatility
⭐ Good (293 reviews)Performance SUV and crossover daily driving🌀️ All Season
β˜… CURRENT
Radar Dimax AS-8 255/55R18
πŸ›£οΈ Comfort-focused touring
Rating
⭐ Excellent (40 reviews)
Best For
⭐ Daily highway commuting and city driving
Season
🌀️ All Season
BFGoodrich Advantage Control 255/55R18
πŸ›£οΈ Comfort-focused touring
Rating
⭐ Excellent (219 reviews)
Best For
⭐ Daily highway commuting and city driving
Season
🌀️ All Season
Michelin Pilot Sport 4 SUV 255/55R18
β˜€οΈ Summer performance
Rating
⭐ Excellent (85 reviews)
Best For
⭐ Performance SUV daily driving
Season
β˜€οΈ Summer
Michelin Latitude Tour HP 255/55R18
πŸ›£οΈ Touring all-season
Rating
⭐ Good (622 reviews)
Best For
⭐ Daily highway commuting in crossovers and SUVs
Season
🌀️ All Season
Toyo Proxes ST III 255/55R18
🌀️ All-season versatility
Rating
⭐ Good (293 reviews)
Best For
⭐ Performance SUV and crossover daily driving
Season
🌀️ All Season

β˜… Currently viewing this tire. Sorted by expert rating (high to low).

✨

Key Features

🌧️
Wet Weather Traction
Circumferential grooves and independent tread blocks enhance hydroplaning resistance and wet grip performance.
πŸ›£οΈ
Highway Stability
Continuous center rib design promotes stable tracking and reduces road noise for comfortable highway driving.
βš–οΈ
Asymmetric Design
Asymmetric tread pattern with even footprint distribution optimizes contact patch for balanced wear and handling.
❄️
Light Snow Capability
Wide distribution of lateral sipes across the tread provides grip in wet, slushy, and light winter conditions.
β›½
Fuel Efficient
Silica-enriched compound reduces rolling resistance to help improve fuel economy during daily driving.

🎯 Best For

βœ“ Daily highway commuting and city drivingβœ“ Crossover and SUV owners seeking comfortβœ“ Year-round driving in moderate climatesβœ“ Drivers prioritizing treadwear and value
πŸ“‹

Specifications

πŸ“
Size
255/55R18
βš–οΈ
Load Index
109
🏎️
Speed Rating
W
πŸ“

TirePath Editorial Review

4.5
β˜…β˜…β˜…β˜…β˜…β˜…β˜…β˜…β˜…β˜…TirePath Rating

"After analyzing survey data, this grand touring tire excels at comfort and treadwear for crossover drivers who prioritize daily commuting value. Performance enthusiasts may find the handling less engaging than premium alternatives."

By TirePath Editorial TeamFeb 17, 2026
⭐

TireRack Ratings

Overall Rating⭐ Excellent
Survey Ratings40 reviews
CategoryGrand Touring All-Season

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πŸ“ Popular Tire Sizes

Radar Dimax AS-8 255/55R18 XL 109W Grand Touring All-Season Tire DSC0389
Size255/55R18
Season🌀️ All Season
VehiclePassenger Car