Question

Which petroleum product is used as grease in automobiles and heavy machines?

Answer 1

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Explanation:

The engine lubrication system may be either pressure type or splash type, although various combinations of these two systems are used. A single system lubricates the entire engine of all present day motor vehicles. Only equipment out side the engine, such as starter, generators, water pump and distributors are separately lubricated. This system circulates the oil from a common reservoir or sump to the main bearings, connecting rod bearings, wrist pin, camshaft bearings, cams, cylinder walls, valves and timing drive. The pump is located at the bottom of the crank case.

Answer 2

Answer:

lubricant oil

Explanation:

it is an product of petroleum with a slimy characteristic.