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Why Do Some Engine Use A Dry Sump Oil System 1

- Apr 12, 2018 -

Most production cars have a wet sump oil system .The HowStuffWorks article on car engines shows you where the sump is --it's the area below the crank shaft .In a wet sump,the oil that you put into the engine is stored beneath the crankshaft in the oil pan.This pan has to be large and deep enough to hold four to six quarts of oil--think about 3-liter bottles of soda and you can see that this storage area is pretty big.

In a wet sump ,the oil pump sucks oil from the bottom of the oil pan through a tube ,and then pumps it to the rest of the engine.

In a dry sump,extra oil is stored in a tank outsuide the engine rather than in the oil pan.There are at least two oil pumps in a dry sump--one pulls oil from the sump and sends it to the tank,and the other takes oil from the tank and sends it to lubricate the engine .The minimum amount of oil possible remains in the engine .

Dry sump system have several important advantages over wet sumps .

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