Author Question: What are the four purposes of oil? What will be an ideal response? ... (Read 48 times)

gbarreiro · **on:** Jul 21, 2018

What are the four purposes of oil?

What will be an ideal response?

Question 2

What are piston rings and what are they used for?

What will be an ideal response?

scottmt · **Reply #1 on:** Jul 21, 2018

Answer to Question 1

The four purposes of oil are: lubricating the moving parts, cleaning the engine, helping to cool the
interior of the engine, and helping to seal the gap between the rings and cylinder wall.

Answer to Question 2

They are rings made of cast iron and/or steel that are fitted into grooves near the top of the piston.
They create a seal between the piston and the cylinder wall.