Engines & Components

How much time and money should you invest in oil changes? We add up each step to get a reliable time estimate.

Several factors, such as heat and vibration, can reduce a car battery’s lifespan. Here's how to maximize battery longevity.

Every driver should know how to jump-start a car. While it's not a difficult task, you need to know the basics. Here's the skinny.

An alternator's replacement cost depends on several factors. New, rebuilt or used? Amperage? One versus three wires?

Swapping a 5.0-liter Ford V-8 into the Mazda Miata's engine bay turns the inexpensive roadster into a tire-shredding monster.

There are multiple solutions: A freeze plug heater, dipstick heater, oil pan heating pad, and in-line coolant heater.

Breathing exhaust fumes from a leak can be dangerous—even deadly.

Adding fuel injection to a vintage ride is as easy as bolting on a carburetor.

One of the least understood gauges measures fuel pressure. Here’s what you need to know.

Modern vehicles often have complicated electronics. But car starters are straightforward and easy to replace.

To add grunt, you need to burn more fuel. Is it time to consider nitrous oxide? Or a compressed air supercharger?

Changing the air cleaner is a quick and easy job that anyone can accomplish. And it's important to do about once a year.

A catalytic converter cleaner is a first step before replacing the catalyst. Catalytic converters are essential for emissions reduction.

Make an automotive style statement by upgrading to a set of custom exhaust tips. The options are endless, from hearts to flame-throwers.

One common cause for "Check Engine" dashboard warning light is a bad O2 sensor. That's an easy DIY fix.

If it’s done right, the result is an intoxicating noise.

Changing your oil is easier than you think. Follow our ultra-simple visual guide to the essential maintenance task.

If I can impart just one message, this is it: Focus on the fundamentals of basic maintenance.

There are many possible causes for getting stuck with an unresponsive car. Here’s a quick checklist.

A car’s engine is considered overheated if it exceeds 230 degrees. But there are easy ways to prevent an engine from getting that hot.

Consider the wonderful strangeness of the Wankel, V-5, V-16—and the elusive gas vapor engine.