Under the Hood

The Under the Hood Channel explores the systems that make your car function correctly. Learn about car parts and systems and how to do routine maintenance.

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The Dirty Truth About How Often You Need Your Oil Changed

Think you need to have your oil changed every 3,000 miles? Think again.

Why Do Tires Burst More in Summer?

Ever notice you see more tire debris on the side of the road during the hottest months of the summer? Could the heat have anything to do with it?

10 Popular Car Modifications

Even if you're not a car enthusiast, you might still want to consider one of these modifications to make your ride the best on the block.

You Can't Take Your Fancy Self-Driving Car Out of the City — Yet

You may be surprised to know that self-driving cars never go on country roads because so far companies have only done the necessary precise mapping on city streets. An MIT project is changing all that.

Dieselgate and the Volkswagen Cartel

Have the right Volkswagen execs paid for lying to the public about their car's environmental standards and emissions?

Is Your Car Road-trip Ready?

You might think your car is fine for your upcoming summer road trip. But if it's more than 10 years old, you might want to think again.

How Do I Get Rid of a Dead Animal Smell in My Car?

Fighting the funk brought on by an animal decomposing inside your car engine can be hard, but not impossible. Here's how to do it.

Winter Tires Really Do Make a Difference in the White Stuff

Winter tires are very different from all-season and snow tires.

Modern Cars Are Kind of Boring. Why Is That?

There are a lot of vanilla vehicles being churned out these days. What's the deal?

Why Carmakers Are Ditching the Spare Tire

As many as a third of new 2017 cars didn't come with spare tires. So what's the deal?

Will Autonomous Vehicles Be Able to Break the Speed Limit?

Will the programming of truly driverless cars prevent them from violating traffic laws? That might actually make traffic move faster.

How Gas Compression-ignition Engines Work

Will the world's first commercially available gas compression-ignition engine finally be a success?

How to Avoid a 'Hurricane Car'

2017 has been a crazy year for hurricanes, which means it could be a crazy year for flood-damaged cars hitting the market, too. How can you spot one?

Diesel Isn't Always a Worse Polluter Than Gasoline

Whether diesel- or gasoline-powered cars spit out more toxins depends on the pollutant measured, a new study says.

Self-driving Cars May Have Unexpected Effect: Fewer Organ Donations

Autonomous vehicles could prevent a lot of car accidents from occurring. And that's good news — except for one particular population relying on organ donations.

College Student Turns His Honda Civic into a Self-Driving Car for $700

Thanks to some open source software on the internet, other people are trying it too.

Making a Car Last for 300,000 Miles Is Totally Possible — Here's How

Putting 300,000 miles on a vehicle may seem like an impossible goal, but there are plenty of ways to extend a car's life span.

Quadriplegic Man Gets Nation's First Autonomous Car Driver's License

Racecar driver Sam Schmidt was paralyzed in a car crash in 2000. Nevada just issued him a first-of-its-kind license to take his special car on the road.

If Humans Were Built to Withstand a Car Crash, They Might Look Like This

Graham is what you get when an artist, a trauma surgeon and a collision expert team up to imagine what humans would like if we evolved to fit cars.

Out Cold and Behind the Wheel in Semi-autonomous and Autonomous Cars

People fall asleep, have heart attacks or are otherwise incapacitated while driving all the time. How does that work in the world of semi-autonomous and autonomous cars?

Here's Why Everyone's Talking About Tesla's Autopilot System

On May 7, Joshua Brown died while driving his Tesla Model S with the Autopilot system engaged. What, if anything, does that mean for the future of driverless cars?

New 'Textalyzer' Tech Aims to Catch Distracted Drivers

A proposed bill in New York would give police access to drivers’ phones after car accidents. Yes, texting while driving is a problem — but could this be the solution?

The Goodyear Eagle-360 Concept Reinvents the Wheel

The Goodyear Eagle-360 concept tire, a spherical design, was unveiled at the 2016 Geneva International Motor Show — a tire for future autonomous vehicles.

New Study: How to Build Batteries Out of Thin Air for Carbon-Negative Cars

Scientists propose extracting carbon dioxide out of the atmosphere to make carbon nanotubes, and then using those to make batteries, also counteracting climate change.


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