Updated 2026-06-24
When should you replace your spark plugs?
Iridium/platinum plugs commonly last 60,000–100,000 miles; copper plugs much less. EVs have none.
Why it matters: Worn plugs cause misfires, rough idle, poor fuel economy and failed emissions tests.
Replace Spark Plugs by model
| Toyota Camry (2018-2024 (XV70)) | Iridium, ~120,000 mi |
|---|---|
| Toyota Corolla (2020-2024 (E210)) | Iridium ~120,000 mi |
| Toyota RAV4 (2019-2024 (XA50)) | Iridium, inspect ~60,000 mi, replace by ~120,000 mi |
| Honda Civic (2016-2025 (10th-11th gen)) | ~60,000-100,000 mi (1.5T often ~60k-80k) |
| Honda CR-V (2017-2024 (5th-6th gen)) | ~100,000 mi (1.5T benefits from earlier ~60k-80k) |
| Honda Accord (2018-2025 (10th-11th gen)) | ~60,000-100,000 mi (turbo earlier) |
| Ford F-150 (2021-2024 (14th gen)) | ~100,000 mi (EcoBoost owners often ~60k-80k under boost) |
| Chevrolet Silverado 1500 (2019-2024 (T1XX)) | ~97,500 mi (5.3L V8) |
| Nissan Altima (2019-2024 (6th gen L34)) | Inspect ~60,000 mi, replace ~105,000 mi (NA); 2.0T sooner |
| Jeep Wrangler (2018-2024 (JL)) | ~60,000 mi (3.6L iridium) |
| Subaru Outback (2020-2024 (6th gen)) | Every 60,000 mi (NA); turbo similar/sooner |
| Hyundai Elantra (2021-2024 (CN7 7th gen)) | ~96,000 mi (Smartstream 2.0); 1.6T sooner |
| Mazda CX-5 (2017-2024 (KF gen)) | NA 2.5: ~75,000 mi; 2.5 TURBO: ~40,000 mi (notably short) |
| Tesla Model 3 (2017-2024 (EV — no engine maintenance)) | N/A — electric |
| Volkswagen Jetta (2019-2024 (MK7 / A7)) | TSI plugs ~40,000 mi (notably short — turbo) |
Stop guessing what's due next
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Download Servlog — free on the App StoreFAQ
When should you replace your spark plugs?
Iridium/platinum plugs commonly last 60,000–100,000 miles; copper plugs much less. EVs have none.
Why does replace spark plugs matter?
Worn plugs cause misfires, rough idle, poor fuel economy and failed emissions tests.
Does the interval vary by car?
Yes — exact intervals differ by make, model and driving conditions. See the per-model table on this page and always confirm with your owner's manual.
General guidance — confirm the exact interval in your vehicle's owner's manual.