Oil change frequency depends on oil type and driving conditions. Conventional oil lasts about 4,000 miles, synthetic blend 6,000 miles, and full synthetic 7,500–10,000 miles. Severe driving conditions can reduce these intervals by 30–50%.
- Conventional oil: every 3,000–5,000 miles or 3–6 months
- Synthetic blend: every 5,000–7,500 miles or 6 months
- Full synthetic: every 7,500–10,000 miles or 12 months
- Most modern car manufacturers recommend 7,500+ mile intervals with synthetic oil
- Always defer to your owner’s manual over generic advice
| Oil Type | Normal Interval | Severe Interval | Cost/Change |
|---|---|---|---|
| Conventional | 3,000–5,000 mi | 2,000–3,000 mi | $35–$55 |
| Synthetic Blend | 5,000–7,500 mi | 3,500–5,000 mi | $55–$75 |
| Full Synthetic | 7,500–10,000 mi | 5,000–7,000 mi | $70–$100 |