Flushing water with air (gun) pressure

Flushing water with engine oil

Flushing water with coolant oil

Flushing water with soap oil

Low temperature of engine

High temperature of engine

Operating temperature of engine

Freezing temperature of engine

Radiator core tubes

Radiator fins

Radiator hose

Radiator cap

Four stroke engine

Two stroke engine

Steam engine

Battery car

To check oil pressure

To check oil temperature

To check oil density

To check oil level