How small are the particles that a high-quality oil filter can trap?

The secret heartbeat of your car

Chapter 1

The four-stroke dance

Chapter 2

The heavy metal band

Chapter 3

Feeding the beast

Chapter 4

Keeping it cool and smooth

YOUR GOAL

Master of The secret heartbeat of your car

Ch 4 · Keeping it cool and smooth
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audi Engine Cooling Systems

Keep it cool, keep it cool, Venting heat that warms two homes.

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Your car engine generates enough waste heat to warm a three-bedroom house.

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The thermostat traffic cop

audi Bright arrows show coolant flowing past the open valve toward the car radiator.

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The radiator wind tunnel

audi A labeled isometric render shows liquid flowing through engine channels into a radiator.

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Fun Fact

Engine heat: A car engine generates enough waste heat to warm a three-bedroom house in a freezing winter.

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Gossip

How often do you think people actually check their oil?

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Quiz

What chemical is mixed with water to make engine coolant/antifreeze?

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Quiz

Where is the radiator usually located on a front-engine car?

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Quiz

What happens to metal parts inside an engine if it completely runs out of oil?

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Quiz

What does the engine's thermostat do?

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Quiz

What is the primary purpose of engine oil?

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Quiz

How small are the particles that a high-quality oil filter can trap?

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Quiz

What drives the coolant mixture through the engine's cooling passages?

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Quiz

What is the ideal operating temperature range for a modern car engine?

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