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1st. Lubrication, if the oil works correctly none of the metal parts actually touch each other.

2nd most important Carey contaminants and dirt away to be trapped in the oil filter.

3rd Cooling, many moving components inside the engine are cooled by the oil, not directly by the cooling system.

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Q: What is the purpose of oil used in a cars engine?
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What is the purpose of adding oil to a cars engine?

lubricates the crankshaft and pistons


How is viscosity used in cars?

It is used as a lubricant. Ex engine oil


What is oil useful?

Used oil is oil that has already been employed for a purpose. Used motor oil, for example, is motor oil that has been run through an engine. Used cooking oil is oil that has been utilized in the preparation of food.


How much oil is used a day?

Oil in vehicles is typically not consumed within the engine, what is in the engine is cycled through, unless of course your engine is burning or leaking oil. Most passenger cars though run on 4 to 5 quarts of oil.


Can you use 10w 30 motor oil usually used in cars for a generator which has a 4 cycle engine?

Of course you can. A small 4 cycle engine uses the exact same oil as used in any car.


Who makes the best engine oil for classic cars?

Castrol Motor makes the best engine oil for classic cars. Also, Pennzoil is an good choice for classic cars . Including, Mobil 1 and Amsoil. They are all great sources of oil for classic cars, but Castrol is the number one best oil for classic cars.


Where is the oil filler?

On newer cars it is a copy on the top of the engine marked "OIL".


Do you top up engine oil in a automatic car?

Yes you use engine oil in all cars regardless of transmission.


In automobiles what is the purpose of an oil pump?

In automobiles, the purpose of an oil pump is to lubricate the bearings and makes the fluid run better and helps with cooling the engine parts. They are also used for running a timing belt.


What does the oil pressure light look like?

There is no such thing as an oil pressure light on most cars. Some cars have oil pressure gauges, and all have a "Engine" light or "Check Engine" light with a picutre of either an oil can, or Engine Block The oil pressure warning light usually looks like a little red oil can. The check engine light looks like a little yellow engine.


What does the oil light look like?

There is no such thing as an oil pressure light on most cars. Some cars have oil pressure gauges, and all have a "Engine" light or "Check Engine" light with a picutre of either an oil can, or Engine Block The oil pressure warning light usually looks like a little red oil can. The check engine light looks like a little yellow engine.


How do you get engine oil into a car?

Check the drivers manual, it will show you where the engine oil goes in, how much to put in and what type to put in. Normally the filler cap is on top of the engine itself, on top of the rocker or cam covers. Modern cars have a picure of an oil can moulded into it, older cars may have the name 'oil', or equivalent language such as 'Olio', for Italian cars.