Engine Break-in (Running-in)
Break-in is the initial period of a new engine when parts settle.
What is Engine Break-in (Running-in)?
Manufacturers may recommend moderate revs. Modern engines need less break-in. Avoid constant speeds and full load. New brakes and tyres also need a short running-in period, so avoid hard braking and aggressive cornering at first. Varying engine speed and load during the first few hundred kilometres helps rings bed in. Factory-fill oil is usually suitable, but some manufacturers recommend an early first oil change after an engine rebuild.
How it works
Surfaces wear in and seal better.
Why it matters for your car
Follow the manual's advice. Some recommend an early oil change.
Other terms
- AdBlue Heater
- Car Alarm
- Charcoal Canister (EVAP Canister)
- Clutch Master Cylinder
- Cylinder Honing
- Defensive Driving
- Engine Flush
- Green Card (International Motor Insurance)
- Ignition Advance
- Oscilloscope
- Precharge Circuit
- PSI (Pounds Per Square Inch)
- Shock Absorber
- Smart Repair (Small Area Repair)
- Tube-Type Tyre (Inner Tube)
- Type 1 Connector (SAE J1772)
- Vehicle-to-grid (V2G, Bidirectional Charging)
- Wheel Cleaner
- Windscreen Chip Repair
- Windscreen Demisting (Defrost)