Auto | Under the Hood | Exhaust & Emissions

This section can help you keep your exhaust system working properly. Learn how mufflers, catalytic converters and oxygen sensors work.

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What can you do to reduce your car's emissions?

To reduce your cars emissions, you can help its catalytic converter work more efficiently by preheating it, or you can inject a urea solution into your exhaust pipe. Learn what you can do to reduce your car's emissions in this article.


How does the oxygen sensor in a car work?

How does the oxygen sensor in a car work?

How does the oxygen sensor in a car work? See more »

What is a catalytic converter and how does it work?

What is a catalytic converter and how does it work? See more »