Maintenance
- How often should I change spark plugs?
Most modern cars need spark plugs changed every 30,000 to 100,000 miles, depending on the plug type. Check your owner's manual for the exact interval. - What happens if I ignore a check engine light?
Ignoring a check engine light can lead to increased emissions, reduced fuel economy, and potentially costly damage. A flashing light indicates a serious misfire that can destroy the catalytic converter. - How do I reset the oil life light?
The exact reset procedure varies by make and model, but it usually involves turning the ignition on and using the gas pedal, a dashboard button, or the infotainment menu to reset the oil life monitor. - When should I replace an oxygen sensor?
Replace an oxygen sensor when it fails or becomes sluggish, typically after 60,000 to 100,000 miles, or when you get a check engine light with a code like P0130-P0167. - How do I check my coolant level?
Check the coolant level only when the engine is cold by looking at the translucent overflow reservoir and ensuring the level is between the MIN and MAX marks. - Why does my car need a tune-up?
A tune-up replaces worn ignition and fuel system parts to restore performance, fuel economy, and reliability, and to prevent more serious damage.