Tire Warranty Comparator
Compare tire warranties side by side: treadwear mileage, rotation rules, proration, road hazard and exclusions in miles and km.
Compare mileage coverage and conditions.
Tire Warranty Comparator: Tire Size Inputs
Compare two tire sizes here. Use the formulas and reference tables below for this tool's specific calculation.
How Tire Warranty Comparator Works?
The Tire Warranty Comparator lines up the terms of two warranties for review. It converts mileage to kilometers so distance limits can be compared in the same unit. Follow the 3 steps below.
Enter each warranty
Type the mileage, rotation rule, proration basis and road hazard terms from each warranty document.
Align the terms
The comparator lines up the same term for every warranty.
Flag restrictions
The comparator marks conditions that cut coverage, such as staggered fitment exclusions and rotation record requirements.
Tire Warranty Comparator Formula
The Tire Warranty Comparator values a treadwear warranty with Covered value per mile = Price ÷ Warranty miles.
V = P ÷ M_wkm = mi × 1.609344M_eff = M_w × factor- P
- Tire price
- M_w
- Warranty mileage
- factor
- Fitment factor, for example 0.5 for staggered sets
Worked example
A $210 tire with an 80,000 mi warranty values each warranted mile at $0.0026. On a staggered car with a half-mileage rule, the coverage drops to 40,000 mi (64,374 km).
Tire Warranty Comparator Conversion Table
The Tire Warranty Comparator conversion table compares 7 terms across 3 sample warranties.
| Term | Warranty A | Warranty B | Warranty C |
|---|---|---|---|
| Treadwear miles | 50,000 mi (80,467 km) | 65,000 mi (104,607 km) | 80,000 mi (128,748 km) |
| Rotation required | Every 7,500 mi | Every 6,000 mi | Every 5,000 mi with records |
| Proration basis | Miles used | Miles used | Miles used |
| Free replacement window | First 2/32 in | First year or 2/32 in | First 2/32 in |
| Road hazard | Not included | 1 year | Not included |
| Uniformity | First 2/32 in | First 2/32 in | First 2/32 in |
| Staggered fitment | Half mileage | Not covered | Half mileage |
Terms are illustrative. Each tire maker's warranty document governs.
What is Tire Warranty Comparator?
A Tire Warranty Comparator is a tool that compares the written terms of tire warranties, not only the headline mileage. A higher mileage number with strict conditions delivers less than a lower number with easy conditions.
Treadwear warranties are prorated. The buyer gets credit for unused miles toward a new tire, not a free tire.
Common exclusions include staggered fitments, commercial use, missed rotations and damage from misalignment.
What are the uses of Tire Warranty Comparator?
There are 4 main uses of the Tire Warranty Comparator, including model choice and claim preparation.
Model choice
Compare warranty value between finalists.
Claim preparation
Check the conditions before filing a claim.
Staggered car checks
Find warranties that cover staggered sets.
Record keeping
List the rotation records a warranty needs.
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