How often should you change your oil?
Guide · maintenance
The correct oil-change interval is the time, distance, or oil-life-monitor rule in the owner's manual for your exact engine, market, oil specification, and service conditions. Do not substitute a universal mileage rule: identify whether normal or severe service applies, record any time limit, and follow the earlier trigger the manual requires.
Checklist
Manual-first oil check
- Find the exact oil section in the owner’s manual, not only a forum or retailer result.
- Write down the viscosity grade and the required specification as two separate requirements.
- Confirm engine, model year, market, and service schedule before buying oil or parts.
- Check capacity with filter and avoid overfilling.
- Keep a mileage/date note after the service so the next interval is clear.
Use this before buying oil, choosing an alternate grade, or changing the interval.
Use your manual’s interval, not a sticker
Your manufacturer sets the oil-change interval for your specific engine and oil specification. Many service stickers default to a shorter, more conservative number. Start from the owner’s manual, then adjust for how you actually drive.
Use the official manual finder if you do not have the document. Record the evidence in the manual evidence builder so distance, time, oil-life-monitor, and severe-service rules stay separate rather than turning into one guessed number.
What to extract from the manual
| Manual field | What to record | Why it matters |
|---|---|---|
| Vehicle scope | Year, model, engine, market | Intervals can differ across engines and regions |
| Oil requirement | Grade plus API, ILSAC, ACEA, or OEM approval | The interval may assume a specific oil performance level |
| Normal schedule | Distance and time limit | Use the earlier trigger if the manual says distance or time |
| Severe schedule | Conditions plus shorter distance/time rule | The label “severe” is defined by the manufacturer, not by how difficult driving feels |
| Oil-life monitor | What the percentage/message means and any maximum time | A monitor does not erase the manual’s conditions or calendar limit |
| Reset procedure | When and how to reset after service | A reset without an oil change produces a false remaining-life estimate |
Normal vs severe service
Many manuals separate service conditions:
- Normal service — the longer interval, for typical mixed driving.
- Severe service — a shorter interval for tougher conditions (short trips, extreme temperatures, towing, dust, heavy idling).
Pick the schedule using the manual’s own definitions. Common examples include repeated short trips, extensive idling, towing, dust, or temperature extremes, but only the vehicle document tells you which conditions and interval apply to that engine.
| Your evidence | Conservative action |
|---|---|
| Manual gives one fixed distance/time rule | Follow the earlier trigger exactly as written |
| Manual gives normal and severe schedules | Use the schedule whose listed conditions match your driving |
| Manual uses an oil-life monitor | Follow the alert plus any stated time or maximum-distance limit |
| Schedule or vehicle scope is unclear | Confirm with the manufacturer or dealer; do not invent an interval |
Oil-life monitors
Many newer vehicles estimate remaining oil life from operating inputs. Treat the display as the vehicle maker intends: confirm the manual’s instructions, do not ignore a change-oil message, and reset the monitor only after the oil was actually changed. Save the next due evidence in the Saved Garage rather than relying on a generic sticker.
Frequently asked questions
Is the 3,000-mile oil change still a thing?
For many modern engines on synthetic oil, no — it is usually more conservative than the manufacturer schedule. Follow your manufacturer's interval, which is often significantly longer unless severe service applies.
What counts as "severe service"?
Frequent short trips, extreme heat or cold, heavy towing, dusty roads, or lots of stop-and-go. Many manuals have a separate, shorter severe-service interval — check which schedule applies to you.
Should I trust the windshield sticker?
Treat it as a reminder, not gospel. Compare it to your manual or your car's oil-life monitor; shop stickers are often shorter than the manufacturer's interval.