A T-prefix temporary spare is an emergency-use item with vehicle-specific speed, distance, load and pressure instructions. It is not an ordinary road-tire alternative.
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Observed temporary-spare notations
| Temporary size | Rim diameter in | Source ID |
|---|---|---|
| T125/70D16 | 16.0 | ADD02-S-MAZDA-MAZDA3-25 |
| T125/80D16 | 16.0 | ADD02-S-MAZDA-MAZDA3-25 |
| T135/80D17 | 17.0 | ADD02-S-MAZDA-CX-30-25 |
| T155/85D18 | 18.0 | ADD02-S-ACURA-MDX-25 |
| T155/90D17 | 17.0 | ADD02-S-ACURA-RDX-25, ADD02-S-MAZDA-CX-50-25 |
| T155/90D18 | 18.0 | ADD02-S-MAZDA-CX-90-25 |
| T165/80D17 | 17.0 | ADD02-S-HONDA-PASSPORT-25 |
| T165/90D18 | 18.0 | ADD02-S-NISSAN-PATHFINDER-25 |
Use the exact spare specified in your vehicle owner’s manual. Do not substitute one of these notations by geometry alone.
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Sources and scope
- American Honda / Acura — 2025 Acura MDX Specifications & Features (checked 2026-11-01)
- American Honda / Acura — 2025 Acura RDX Specs & Features (checked 2026-11-01)
- Mazda USA — 2025 cx-50 Owner Manual — Vehicle Specification (checked 2026-11-01)
- American Honda — 2025 Honda Passport Specifications & Features (checked 2026-11-01)
- Mazda USA — 2025 mazda3 Owner Manual — Vehicle Specification (checked 2026-11-01)
- Mazda USA — 2025 cx-30 Owner Manual — Vehicle Specification (checked 2026-11-01)
- Mazda USA — 2025 cx-90 Owner Manual — Vehicle Specification (checked 2026-11-01)
- Nissan North America — 2025 Nissan Pathfinder Specifications (checked 2026-11-01)
Research checked November 2, 2026. A source-observed size is not final product fitment. Confirm the actual vehicle and current manufacturer guidance.
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