Transportation

Question 0

What is a quick field test used to measure detergency and dispersancy of used internal combustion engine oils?

Answer 0

Oil spot (or patch) test. A crude test where oil is filtered through a patch. If particles are concentrated in the center of the patch, it indicates that water or anti-freeze may be impairing dispersancy.

Question 1

List the designations for the top performance level in the NLGI automotive classifications system for chassis and wheel bearing greases.

Answer 1

Wheel bearings - GC

Chassis - LB

Question 2

What are the words that are found on the ILSAC (API) starburst?

Answer 2

American Petroleum Institute Certified for Gasoline Engines

Question 3

What are the three designations found on the API donut?

Answer 3

API service classification, SAE grade, and energy conserving level

Question 4

What are the most current API service classifications?

Answer 4

CJ-4

SN

Question 5

An SAE 30 engine oil is approximately __________cSt or _____ SSU.

Answer 5

Approximately 100 cSt (at 40° C) or 500 SSU

Question 6

What is the primary difference between Ford, Chrysler and GM automatic transmission fluids?

Answer 6

The original Ford fluid (pre-1979 vehicles) contained no friction modifier.
Current (Mercon) and GM (DEXRON III) contain friction modifiers. Chrysler MOPAR 7176 (now ATF +3) is formulated to be compatible with friction plate materials in Chrysler transmissions. The newest fluid Ford Type B is semi-synthetic.

Question 7

What do the “S” in SJ and the “C” in CF-4 stand for?

Answer 7

“S” stands for “Service” in spark engines

“C” stands for “Commercial” in compression engines

Question 8

What does the “W” signify in 10W-30?

Answer 8

“W” Winter - It indicates an engine oil’s viscosity at low temperatures.

Question 9

In most engine applications, what would exhibit lower oil consumption, SAE 40 or SAE 15W- 40?

Answer 9

SAE 15W-40

Question 10

What does API stand for?

Answer 10

American Petroleum Institute

Question 11

What does ILSAC stand for?

Answer 11

International Lubricant Standardization and Approval Committee

Question 12

What does SAE stand for?

Answer 12

Society of Automotive Engineers

Question 13

What does OEM stand for?

Answer 13

Original Equipment Manufacturer

Question 14

What does ATF stand for?

Answer 14

Automatic Transmission Fluid

Question 15

What are the four strokes of a four stroke cycle engine?

Answer 15

Intake
Compression
Power
Exhaust

Question 16

What is HTHS? What type of application is it considered important?

Answer 16

High Temperature High Shear

Multi-grade engine oils

Question 17

What are three important properties of an ATF?

Answer 17

ATF (Automotive Transmission Fluid)
Frictional characteristics
Oxidation stability
Low temperature fluidity
Anti-wear
OEM approval

Question 18

What are four reasons for high oil consumption?

Answer 18

Too low a viscosity
Stuck
Worn or improperly seated rings
Seal leakage
Leakage around valves