The old 3,000-mile rule is out of date for most modern cars. Synthetic oil and tighter engine tolerances have stretched intervals a long way.
In this article
- What the manual says
- When to change sooner
- Check the level
What the manual says
Many cars specify 5,000 to 10,000 miles between changes with synthetic oil. The owner’s manual is the best guide for your engine.
| Condition | Typical interval | Oil type |
|---|---|---|
| Normal driving | 7,500 to 10,000 miles | Full synthetic |
| Severe use | 3,000 to 5,000 miles | Full synthetic |
| Older engines | 3,000 to 5,000 miles | Conventional or blend |
| Oil-life monitor | When the car says | Follow manual |
Intervals and costs are typical ranges. Your owner’s manual comes first.
When to change sooner
Short trips, towing, dusty roads and extreme heat all wear oil faster. In those conditions, follow the severe-service schedule.
Oil is the cheapest part of the engine.
Check the level
Pull the dipstick once a month. Low oil does more damage than old oil, and some turbo engines use a little between changes.
Do it in this order
- Read the manual
- Use the viscosity it specifies
- Check oil monthly
- Keep receipts
Practical tip
Use the oil grade written in your manual, such as 0W-20 or 5W-30. The wrong grade can hurt efficiency and protection.
Bottom line
Follow the manual or the car’s oil-life monitor, and check the level regularly.
Specifications, prices and rules change. Confirm current details with the manufacturer or the relevant authority before you buy or repair.
