Delta tire treadwear ratings

Quick answer: NHTSA's UTQG data lists 6 Delta tire lines. The highest median treadwear grade is 700 (ESTEEM ULTRA (T range)); the lowest is 440 (ESTEEM ULTRA (W-rated)). Treadwear is a relative grade, not a mileage promise.

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Rank	Line	Treadwear	Range	Percentile*	Traction	Temp.	Records
1	ESTEEM ULTRA (T range)	700Treadwear	600–700	95	Traction A	Temp B	10
2	ESTEEM ULTRA (H & V-rated)	600Treadwear	600	86	Traction A	Temp A	1
3	Trailcutter AT 4S	600Treadwear	600	86	Traction A	Temp B	1
4	ESTEEM XLE	500Treadwear	500–700	68	Traction A	Temp A	40
5	Grand Prix Tour RS	460Treadwear	380–500	62	Traction A	Temp A	3
6	ESTEEM ULTRA (W-rated)	440Treadwear	440	54	Traction A	Temp A	1

*Percentile = share of all 3,023 lines with a lower median treadwear. Only lines with a linked name have their own page so far; more are added in stages.

Source: NHTSA tire ratings API, 2026-10-25. Methodology.

Guides that explain these numbers

What does a tire treadwear rating mean?UTQG basics
Treadwear rating vs. mileage warrantyTreadwear vs. mileage
How to find the longest-lasting tires for your sizeChoosing

Last updated: 2026-10-25 · Data: NHTSA tire ratings (UTQG) API, pulled 2026-10-25. 7,628 records.