How Often to Change Oil in Your 2020 Mazda CX-3
Change the oil and filter in your 2020 Mazda CX-3 every 7,500 miles or 12 months, whichever comes first. Mazda sets this standard for normal driving. In severe conditions, change it every 5,000 miles or 6 months.
Normal vs. Severe Driving Conditions
Mazda defines normal driving as steady highway miles, light city traffic, and moderate weather. Severe conditions shorten oil life. Check this table to see if your drives count as severe:
| Driving Condition | Examples | Oil Change Interval |
|---|---|---|
| Normal | Highway drives, light traffic, mild weather | 7,500 miles or 12 months |
| Severe | Trips under 5 miles, dusty or salty roads, heavy stop-and-go, towing, extreme heat or cold, steep hills | 5,000 miles or 6 months |
Your CX-3 has a Maintenance Monitor with a wrench light. It turns on to remind you of service. Change the oil within 600 miles or 15 days after the light appears. Mazda recommends full synthetic 0W-20 oil. This oil matches the engine specs and keeps it running smooth.
Oil Life Monitor Details
The wrench light acts as your service cue. Reset the Maintenance Monitor right after each oil change. This keeps future reminders accurate. Always use 0W-20 full synthetic oil. Mazda Genuine Oil works best, but any that meets the spec will do.
Practical Tips to Stay on Track
Follow these steps to keep your engine healthy:
- Set reminders for 7,500 miles or 12 months in normal use. Drop to 5,000 miles or 6 months for severe drives.
- Check oil level each month with the dipstick. Add oil if low. Watch for quick drops, which signal problems.
- Combine oil changes with tire rotations, brake checks, and fluid inspections. Shops often do this at the same time.
- Save receipts with dates and mileage. Records help with warranties and boost resale value.
- Pick a quality oil filter. It traps dirt and lets oil last the full interval.
- Confirm the wrench light resets before you drive away from the shop.
Typical Costs
Expect to pay $50 to $100 for a synthetic oil and filter change on your CX-3. Costs vary by location, oil brand, and filter type. Skip changes, and you risk sludge buildup, worse gas mileage, and big repair bills.
Sidekick tracks your miles and habits to remind you exactly when to change oil next.