Part and system guide
Engine Oil System
The engine oil system lubricates moving parts, helps carry heat away, and supports hydraulic components inside the engine.
What it does
Maintains oil pressure and film strength so bearings, camshafts, timing components, and lifters are protected.
Failure signs
- Oil pressure warning
- Engine ticking or knocking
- Burning oil smell
- Blue smoke
- Oil leaks
Maintenance notes
- Stop promptly for oil pressure warnings.
- Check oil level on level ground after the engine has sat briefly.
- Use the correct oil viscosity and specification for the vehicle.