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Friction is cut down in a car engine for two very important reasons. First, cutting down friction increases horsepower. It takes horsepower to overcome friction; so anything that can be done to cut down friction will increase the horsepower. Second, friction causes heat to be produced. Too much heat is bad, because if the engine gets too hot, then metal is softened and weakened, leading to failure of engine parts. The engine has a cooling system to remove unwanted heat, but too much friction would require a larger and more efficient cooling system to remove the excess heat, which would add expense and weight to the car. Motor oil is used to cut down the friction in the car engine. Also, very close tolerances in production of engine parts helps to cut down friction.
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoIt causes corrosion of the metal forming the car engine . That`s why we use lubricating oil. Also friction causes the engine temp. to rise which can cause the car explosion.
Wiki User
∙ 11y agoAny metal parts that touch while moving create friction and thus heat--Oil is used to reduce the friction
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How is friction between the moving parts of a car engine reduced?
Friction between the parts of an engine is reduced by applying oil between its parts. mobiloil is particularly used for this purpose.
Why do motors and engines use oil and grease?
Moving parts in an engine are generally metal on metal and in a car engine everything fits very snugly to eliminate knocking and engine rattle, but this causes extreme friction between the metal surfaces.if you were to run your car without oil, much of the power would be lost to friction and eventually the metals will melt and fuse due to the intense heat and friction. oil serves and a lubricating coat covering most moving engine parts (where metal on metal friction is concerned) so that the metal only has the friction of the oil to cope with, which is negligible.Overall it ruduces running heat, engine wear and increases efficiency, engine life and performance.
Why are ball bearing used in wheels?
Machine parts use ball bearings to reduce friction, making it easier to move the moving parts and producing less wear on the parts.
why it is important to reduce friction at movable joint?
friction will resist smooth motion at a moveable joint so reducing friction allows joint to move freely
When Is Friction Useful and When Is Friction Not Useful?
Friction is useful when you are trying to stop a car, but not useful in the pistons of a car's engine (It makes them less efficient).
How is friction between the moving parts of a car engine reduced?
Friction between the parts of an engine is reduced by applying oil between its parts. mobiloil is particularly used for this purpose.
Why do you think Oil is pumped over moving engine parts while the engine is running?
To reduce friction by providing lubrication to the moving parts.
Why do Engine manufactures use oil?
When two metalic moving parts meet there is abrasion from friction causing wear and heat. Oil on the surface causes less friction between the parts and thus the reaction between the two parts is deadened.
What does lubricating oil do?
Reduces friction between moving parts.
What is used in cars to protect the moving parts?
Oil and grease is used to eliminate friction between moving parts.
Why do you use grease between moving parts of vehicles?
to reduce friction
What system removes and reduces heat caused by friction between the moving engine parts and the explosion of fuel in the cylinders?
The lubrication system and the cooling system.
How and why friction is cut down in a car engine?
How - with cooling oil Why - because friction causes heat, and overheating is bad for moving parts.
What machines use to lower friction between moving parts?
Ideal Machine
What do machines use to lower friction between moving parts?
Ideal Machine
Why should you put oil in the engine?
to reduce friction between the parts of a car
What is the purpose of an engine lubricant?
To keep the moving parts cool and lubricated so the metal does not expand (caused be friction and heat) and seize the engine.
