1. Engine Lubrication Systems
Components
Oils and Filters
Maintenance

2. Components Oil pan Oil pump Pressure relief valve Oil galleries
Oil pressure indicators

3. Oils
Purpose of oil:
Lubricate
Cool
Seal
Oil viscosity: oil thickness or resistance to flow
Oil detergents: oil additives that prevent formation of acids and help to hold impurities in suspension for filtering

4. Oils
Multi-viscosity oil: oil that changes thickness depending on temperature; performs as a thinner oil when temperatures are low and as a thicker oil when temperatures are hot
Oil thickness is measured by weight ratings

5. Oils

6. Filters

7. Maintenance Crankcase ventilation
Oil and filter replacement intervals:
Vehicles older than 1990:
3 months or 3,000 miles
vehicles:
5-6 months or 5,000 miles
2000 or newer
Follow manufacturer’s specifications