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American PROSPECTOR A/T LT: treadwear rating & UTQG grades
Grade summary
Key facts
| Treadwear (NHTSA UTQG) | 500median · range 500 · band 500–599 |
|---|---|
| Traction grade(s) | Traction A |
| Temperature grade(s) | Temp C |
| Percentile (all lines) | Median treadwear higher than 68% of 3,020 lines |
| Rank within American | #3 of 9 rated lines (by median treadwear) |
| NHTSA records | 7 total; 6 name a specific size (6 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 500: this is a high treadwear grade; the manufacturer rates this tire to wear slowly relative to the government control tire. 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 A: A: second-highest wet-braking grade. Traction is straight-ahead wet braking only; it does not measure cornering or hydroplaning.
- Temperature C: C (lowest): the minimum level that every passenger tire must meet under federal safety standards.
- Ranked just above in American: GOLD TOUR PLUS 60/65 ser. (median 600).
- Ranked just below in American: Silver (median 480).
NHTSA records for American PROSPECTOR A/T LT
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 |
|---|---|---|---|
| All except | 500 | Traction A | Temp B |
| P225/75R16 | 500 | Traction A | Temp C |
| P235/70R16 | 500 | Traction A | Temp C |
| P245/75R16 | 500 | Traction A | Temp C |
| P255/70R16 | 500 | Traction A | Temp C |
| P265/70R17 | 500 | Traction A | Temp C |
| P265/75R15 | 500 | Traction A | Temp C |
Compare this line with others in the same size: 235/70R16, 245/75R16, 255/70R16, 265/70R17.
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 American lines by treadwear
| Rank | Line | Median treadwear |
|---|---|---|
| 1 | GOLD TOUR PLUS 70/75 ser. | 640Treadwear |
| 2 | GOLD TOUR PLUS 60/65 ser. | 600Treadwear |
| 3 | PROSPECTOR A/T LT (this page) | 500Treadwear |
| 4 | Silver | 480Treadwear |
| 5 | GT GRAND TURBO | 460Treadwear |
| 6 | PROSPECTOR A/P LT | 420Treadwear |
| 7 | GT GRAND TURBO HR4 | 400Treadwear |
| 8 | Bronze | 340Treadwear |
| 9 | GT GRAND TURBO ZR4 | 300Treadwear |
Similar treadwear from other brands
Other lines in the same treadwear band (500–599) with a page here: Americus Sport HP (500), Americus Touring Plus (500), Bridgestone DUELER H/P SPORT AS (500), Comanche RADIAL A/T (500), Comanche RADIAL H/T (500), Continental ContiProContact (500).
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 American PROSPECTOR A/T LT?
NHTSA's UTQG data lists a single treadwear grade of 500 for the American PROSPECTOR A/T LT, from 7 records. Treadwear is graded in multiples of 20 relative to a government control tire graded 100; it is not a mileage guarantee.
Is the American PROSPECTOR A/T LT treadwear grade high or low?
A grade of 500 is a high treadwear grade; the manufacturer rates this tire to wear slowly relative to the government control tire. Compared with every line in the NHTSA data, the median is higher than 68% of lines (dataset median 420). Within American it ranks #3 of 9.
What is the cost per mile of the American PROSPECTOR A/T LT?
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.