08.03 motor oil review

What causes oil contamination? (select all that apply)

• the combustion process

• the environment outside the vehicle

• temperature

• age of the engine

Which of the following are primary functions of motor oil?

• Flow & protect the engine during start-up

• Keep engine surfaces clean

• Prevent engine wear

• Reduce heat

• Seal piston to cylinder wall gaps

Does the base oil or the additives in oil wear out?

• Base oil

• Additives

Lubrication is a primary function of motor oil

• True

• False

Cooling the engine is one of the major functions of motor oil.

• True

• False

Cleaning dirt and debris from moving parts is one of the major functions of motor oil.

• True

• False

One of the major functions of motor oil is to be used as an accelerant.

• True

• False

What information is contained on the API symbol.

• Engine oil performance category (S=Gasoline Engines and C=Heavy Duty and Diesel Engines

• Resource Conserving (Specifies oil meets fuel economy requirements)

• SAE viscosity grade

• Color of the motor oil.

What does the W in 5W-40 stand for?

• water

• winter

• weather

• wax content

Which are considered “severe driving” conditions?

• Driving in dusty conditions c) Frequent short trips

• Driving in extreme hot or cold temperatures

• Highway driving

• Hauling or towing