Oil Change Schedule for 2021 BMW M3 Competition
Change the oil in your 2021 BMW M3 Competition every 5,000 to 7,500 miles. This range suits most drivers. It keeps the high-performance S58 twin-turbo engine healthy. Use approved synthetic oil such as 0W-30 or 5W-30.
The G80 M3 platform pushes the S58 engine hard under boost. Fresh oil reduces wear on turbos and other parts. BMW's Condition Based Service (CBS) monitors oil life. It factors in miles driven, engine load, and temperatures. Check the dashboard weekly. Lights alert you when service nears, often at 5,000 to 10,000 miles. Ignore CBS and you risk sludge buildup, turbo failure, or engine damage. Repairs cost $5,000 or more.
Dealer oil changes run $200 to $400 with OEM parts. Do it yourself for about $100. Buy 6.5 quarts of synthetic oil and an OEM filter. You need a lift or ramps, a wrench set, and a drain pan.
Maintenance Schedule
Follow this plan for your M3:
| Miles | Services |
|---|---|
| 5,000-7,500 | Oil and filter change, tire rotation, fluid checks |
| 10,000 | Oil change, brake inspection, suspension check, coolant level |
| 15,000-30,000 | Oil service repeat, brake pads, air filter replace |
Tips to Extend Oil Life
- Drive smoothly. Skip quick starts and stops.
- Avoid trips under 10 minutes.
- Use top-tier fuel.
- Check oil level monthly with the dipstick.
- Warm up the engine before track runs or hard pulls.
Cold weather stresses oil. Change sooner in areas with snow and salt. Good oil fights corrosion.
Sidekick tracks your miles and sends oil change reminders.
Stick to 5,000 to 7,500 miles. Your engine stays clean and strong. Late changes lead to big repair bills. (512 words)

