How do you change the oil and filter on an engine? Explain the steps.
Question 22
22.
What is the purpose of engine oil?
What would be an example of an SAE rating?
a. SN
b. ACEA
c. ILSAC
d. 5W-20
What would be an example of an API rating?
a. SN
b. ACEA
c. ILSAC
d. 5W-20
What does the W after a rating in 5W-20 signify?
a. The oil was tested in Wyoming
b. The oil was tested for winter weather temperatures at 0ºF (-18 ºC)
c. The oil was tested for warm weather conditions
d. The oil was tested for vehicles that have a W in their name
Which of the following is considered a common multigrade engine oil?
a. SAE 30
b. 75W-140
c. 5W-30
d. SAE 50
Lubrication ___________ friction.
a. reduces
b. enhances
c. maximizes
d. increases
What is the term used to describe the process when gas escapes past the piston rings and into the crankcase?
a. inefficiency
b. friction
c. cooling
d. blow-by
What type of oil results in low levels of impurities, increases lubricating abilities, reduces sludge from forming, and protects at extremely high temperatures?
a. synthetic
b. conventional
c. mineral
d. crude
Which of the following ratings would be a manufacturer specification?
a. SAE
b. API
c. ILSAC
d. dexos1
What type of engine oil additive keeps contaminants suspended to help prevent sludge from forming?
a. spreaders
b. dispersants
c. pour point depressants
d. antifoam agents
What type of engine oil additive helps prevent high temperature oil from becoming too thin?
a. corrosion and rust inhibitors
b. extreme pressure agents
c. antioxidants
d. viscosity modifiers
The main advantage of synthetic oils is that their molecular structure is _______________.
a. consistent
b. varied
c. differing
d. dissimilar
Semi-synthetic oils are a combination of fully synthetic and _____________ base oil.
a. manufactured
b. fabricated
c. conventional
d. non-conventional
Most newer vehicles have a/an _______________________.
a. self-filling oil system
b. lifetime oil filter
c. engine that doesn’t need oil
d. oil life monitoring system
Vehicle usage determines how often you are required to change the oil. Which of the following is NOT a common service interval?
a. Extreme service = 3,000 to 4,999 miles
b. Severe service = 5,000 to 7,499 miles
c. Normal service = 7,500 to 10,000 miles
d. Easy service = 15,000 miles
When installing an oil filter, it is common to tighten it _________ once the gasket contacts the engine.
a. 1/4th turn
b. ½ to 1 full turn
c. 4 turns
d. 8 turns
Technician A says ILSAC develops and identifies standards for gasoline-fueled engine oils. Technician B says that API rates the engine oil service on many engine oils. Who is correct?
a. Technician A
b. Technician B
c. Both Technician A and Technician B
d. Neither Technician A nor Technician B
Technician A says that 5W-30 would be better to use than 20W-50 in most vehicles in cold weather conditions. Technician B says 20W-50 flows better than 5W-30 in cold weather. Who is correct?
a. Technician A
b. Technician B
c. Both Technician A and Technician B
d. Neither Technician A nor Technician B
Technician A says that SN oils can replace SM oils. Technician B says that S in SM stands for spark ignition engines. Who is correct?
a. Technician A
b. Technician B
c. Both Technician A and Technician B
d. Neither Technician A nor Technician B
Technician A says that synthetic oils are generally less expensive than conventional engine oil because they use less crude oil. Technician B says that by using synthetic oil you can increase oil change intervals from 3,000 to over 50,000 miles. Who is correct?
a. Technician A
b. Technician B
c. Both Technician A and Technician B
d. Neither Technician A nor Technician B
Technician A says if the oil warning light indicates that the engine has low or no oil pressure, this means that the oil needs changing. Technician B says if the oil warning light indicates that the engine has low or no oil pressure, you should shut off your engine. Who is correct?