How Often Should You Change Your Oil?
By CarJinga Editorial Team · September 28, 2026
The classic "every 3,000 miles" guideline is outdated for most modern vehicles. Today's engines and oils generally allow for longer intervals, but the right number depends on your specific car and oil type.
General modern guidelines
- Conventional oil: typically every 3,000-5,000 miles
- Synthetic blend oil: typically every 5,000-7,500 miles
- Full synthetic oil: often every 7,500-10,000 miles, sometimes longer depending on the manufacturer
Always follow your specific manufacturer's recommendation
These are general ranges — your owner's manual specifies the exact interval for your engine and oil type, and many modern cars have an oil-life monitoring system that calculates the ideal interval based on your actual driving conditions rather than a fixed mileage number.
"Severe" driving conditions shorten the interval
Frequent short trips, extensive stop-and-go traffic, towing, extreme temperatures, or dusty conditions all count as severe driving and typically call for the shorter end of your manufacturer's recommended range, even with synthetic oil.
Why sticking to the interval matters
Oil lubricates and cools critical engine components, and it breaks down and picks up contaminants over time and mileage. Skipping or significantly delaying oil changes accelerates engine wear and can void warranty coverage on a newer vehicle if you can't show maintenance records.