Western Auto · tire line
Western Auto ADVAN S.T.: treadwear rating & UTQG grades
Grade summary
Key facts
| Treadwear (NHTSA UTQG) | 320median · range 320 · band 300–399 |
|---|---|
| Traction grade(s) | Traction AA |
| Temperature grade(s) | Temp A |
| Percentile (all lines) | Median treadwear higher than 26% of 3,020 lines |
| Rank within Western Auto | #1 of 2 rated lines (by median treadwear) |
| NHTSA records | 22 total; 22 name a specific size (22 distinct sizes) |
| Warranty miles | Not shown (no maker-published figure verified) |
| Price | Not shown (varies by size and store); see “Where to buy” |
What these grades mean in plain English
- Treadwear 320: this is a moderate treadwear grade, near the middle of NHTSA-rated tires. Under UTQG a grade of 200 should wear twice as long as the grade-100 control tire on NHTSA's test course; real-world mileage varies with driving, rotation, alignment and climate.
- Traction AA: AA (highest): best wet-pavement straight-line braking grade on the government test surfaces. Traction is straight-ahead wet braking only; it does not measure cornering or hydroplaning.
- Temperature A: A (highest): resisted heat build-up through the higher 575 rpm test stage.
- Ranked just below in Western Auto: ADVAN Sport (median 180).
NHTSA records for Western Auto ADVAN S.T.
Each row is one NHTSA record as filed by the manufacturer. Sizes are shown exactly as NHTSA lists them; entries such as “All sizes” apply a single grade to several sizes and cannot be matched to one specific size.
| Size (as filed) | Treadwear | Traction | Temperature |
|---|---|---|---|
| 265/50R20 111W | 320 | Traction A | Temp A |
| 275/30R22 99Y | 320 | Traction AA | Temp A |
| 275/40R20 106Y | 320 | Traction AA | Temp A |
| 275/45R19 108Y | 320 | Traction AA | Temp A |
| 275/45R20 110Y | 320 | Traction AA | Temp A |
| 275/50R20 113W | 320 | Traction A | Temp A |
| 275/55R17 109W | 320 | Traction AA | Temp A |
| 285/45R19 107W | 320 | Traction AA | Temp A |
| 285/45R20 112Y | 320 | Traction AA | Temp A |
| 285/50R18 109W | 320 | Traction AA | Temp A |
| 285/55R18 113W | 320 | Traction A | Temp A |
| 295/30R22 103Y | 320 | Traction AA | Temp A |
| 295/35R22 108Y | 320 | Traction AA | Temp A |
| 295/40R20 106Y | 320 | Traction AA | Temp A |
| 295/45R19 109W | 320 | Traction AA | Temp A |
| 295/45R20 114W | 320 | Traction A | Temp A |
| 305/35R23 111W | 320 | Traction A | Temp A |
| 305/35R24 112W | 320 | Traction A | Temp A |
| 305/40R22 114W | 320 | Traction A | Temp A |
| 305/45R20 116W | 320 | Traction AA | Temp A |
| 315/30R22 107Y | 320 | Traction AA | Temp A |
| 315/35R20 110Y | 320 | Traction AA | Temp A |
Compare this line with others in the same size: 265/50R20, 275/40R20, 275/45R19, 275/45R20, 275/50R20, 295/40R20, 295/45R20.
Cost-per-mile calculator
Price and mileage data are pending a licensed feed, so nothing is pre-filled. Enter your own quote and your own mileage expectation (for example the maker's treadwear warranty from the tire's paperwork). Formula: cost per 1,000 miles = price per set ÷ (expected miles ÷ 1,000).
Other Western Auto lines by treadwear
| Rank | Line | Median treadwear |
|---|---|---|
| 1 | ADVAN S.T. (this page) | 320Treadwear |
| 2 | ADVAN Sport | 180Treadwear |
Similar treadwear from other brands
Other lines in the same treadwear band (300–399) with a page here: Allegiance IV RADIAL A/S (320), Bridgestone Turanza 6 (320), Goodyear WRANGLER DURATRAC (320), Hankook veNtus evo3 SUV (320), HP259 HP259 (320), Michelin Pilot Sport 4 (320).
Guides that explain these numbers
- What does a tire treadwear rating mean?UTQG basics
- Treadwear rating vs. mileage warrantyTreadwear vs. mileage
- How to make your tires last longerMaintenance
FAQ
What is the treadwear rating of the Western Auto ADVAN S.T.?
NHTSA's UTQG data lists a single treadwear grade of 320 for the Western Auto ADVAN S.T., from 22 records. Treadwear is graded in multiples of 20 relative to a government control tire graded 100; it is not a mileage guarantee.
Is the Western Auto ADVAN S.T. treadwear grade high or low?
A grade of 320 is a moderate treadwear grade, near the middle of NHTSA-rated tires. Compared with every line in the NHTSA data, the median is higher than 26% of lines (dataset median 420). Within Western Auto it ranks #1 of 2.
What is the cost per mile of the Western Auto ADVAN S.T.?
We do not have a licensed price or warranty-mileage feed yet, so we do not state a cost per mile. Use the formula cost per 1,000 miles = price per set ÷ (expected miles ÷ 1,000) with your own quote and mileage expectation, or the calculator on this page.
Source and caveats
Source: NHTSA tire ratings API, pulled 2026-10-25. Grade definitions: NHTSA TireWise and 49 CFR 575.104. Grades are self-reported by manufacturers. The NHTSA data has no “currently sold” flag (its active field is false on every record), so a listed line may be discontinued. See methodology.