Synthetic Oil and Conventional Oil.
Most modern cars use conventional oil. True or False
False
What does lubrication (oil) do to friction?
reduces
You should consult this to determine the correct oil for your vehicle.
Owner's Manual
Oil filters remove _____________from oil.
contaminants
What is a crude oil that has been pumped from wells and refined into a base oil?
Conventional
The oil light comes on when your engine has little or no oil________________.
Pressure
Which one is not a service interval for changing oil?
Extreme, Easy, Severe, Normal
Easy
Engine oil molecules act like little _______ _______
ball bearings
A combination of synthetic and conventional base oils is called___________________
Synthetic Blends or Semi-Synthetic
Synthetic oil costs more/less than conventional oil.
more
When should oil filters be changed?
when oil is changed
Synthetic oil has a molecular structure that is __________________.
Consistent
Using high-mileage oil could result in leaking seals if you do this
Switch to other oil.
Engine oil leaks may result from_________
Loose oil plug
loose oil filter
leaking seals/gaskets
What's does the W stand for in SAE 15W-40?
The oil has been tested for winter temperatures.
When gas escapes past the piston rings and into the crankcase this is called_______
blow-by
More clearance between moving parts in an engine requires ________________oil.
Thicker
Additives improve or damage engine oil?
improve
Conventional oil has molecules that are inconsistent which can lead the oil to d __________________under extreme temperatures
deteriorate
10W-30, 15W-40, 20W-50, 5W-30, etc....are common ratings for the _________________of oil.
Viscocity (thickness)
The 4 functions of oil include:
lubricate, clean, cool, seal