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Steel Vs. Aluminum Rocker Arms: Does It Make A Difference?
Rocker arms are an essential part of overhead valve engines. But how essential is it to keep track of whether they're made out of steel or aluminum?
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Why Pistons Have Three Rings To Rule Combustion
You've heard that pistons have rings, but have you ever wondered why there are three? Here's how piston rings work together to keep your engine running.
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Here's How To Decipher The Different Grades Of Motor Oil
If you're in the auto parts store wondering what all the codes mean on bottles, then you are not alone. Here's our handy guide to deciphering the digits.
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The 90-Degree Torque Problem: How Engineering Bent Power Around Corners
Torque naturally prefers to move in a straight line. So how does the engine manages to overcome 90-degree bends to deliver that torque to the wheels?
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The Clever Engineering Of Shipping The Chevy Vega By Train
GM hoped the Chevy Vega would reinvent the American car, but it was too expensive to ship — until engineers found a genius way to fit 30 cars per railcar.
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The Difference Between California-Produced Gas And The Other 49 States
California gas prices are higher than the prices in most of the rest of the United States, but taxes are only a small part of the gas-price equation.
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Here's What Can Happen If You Park At A Broken Parking Meter
Ah, a broken meter! A rare chance to park in that crowded shopping area for free. Or is it? Just what can happen if you park in that tempting space?
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How To Prevent Engine Block Hot Spots
If your engine is showing signs of overheating, it might have developed hot spots. Here's how to identify and prevent them so you extend your engine's lifespan.
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Why Toyota Only Built Two Convertible 2000GTs
The Toyota 2000GT was rare, even when it was new, but the convertibles were so scarce just two were ever made. We decided to find out exactly why.
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The Biggest Pros And Cons Of GM's Vortec Engines
Vortec engines have lasted for over three decades. There are reasons as to why they lasted so long, but there are also reasons as to why they fell out of favor.
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Here's How Dyno Tests Actually Work
Dynamometer tests are used to measure a car's torque and rpm response. But how do they get that information? And how reliable is what they get?
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Here's What Happens To All Those IndyCar Tires After A Race
IndyCar tires are supplied by Firestone, with the latest season using over 32,000. What exactly is the fate of all those tires once the race is over?
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Yes, You Can Wrap Your Keys In Aluminum Foil To Prevent Car Theft, But There Are Better Ways
Wrapping your key fob in foil does help protect your car, but it's annoying to unwrap and rewrap your fob every time you use it. Let's talk about other methods.
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Why Did Jaguar Switch From A V12 To A Twin-Turbo V6 In The XJ220?
Jaguar's XJ220 promised incredible speed and power from a robust V12. Unfortunately, certain circumstances forced the brand to use a V6 instead.
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What's The Difference Between Platinum And Double Platinum Spark Plugs?
Platinum spark plugs are already a step up from copper. Double platinum plugs might seem like a straightforward upgrade, but it's not as simple as it seems.
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How And Why Honda And Volkswagen Made Shockingly Successful (Yet Still Doomed) V5 Engines
Volkswagen put V5s in production cars, while Honda used them to dominate MotoGP. But despite being so successful, the engines were doomed from the start.
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High Mileage Vs. High Mileage Extended Performance Oil: Which Should You Use?
There's a whirl of special motor oils you can buy if your car has over 75,000 miles on the odometer. Which kind you need depends on several factors.
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Your Insurance Deemed Your Car Totaled: Now What?
Once your car is totaled, you enter a world where you're not in control of it. And you may find that what the insurance company pays you isn't enough.
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What's The Difference Between Bias Ply And Radial Tires?
There are technological differences between radial and bias ply tires, but the more imporant ones come in performance, on the road, off-road, and on the track.
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What's The Difference Between Satin And Glossy Paint Protection Film?
Paint protection film is a great way to keep your car protected from the elements. Glossy film is common, but satin film has some of its own appeal.
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What Are The Biggest Differences Between Jet Drive And Sterndrive Boat Engines?
Jet drive and sterndrive engines differ in more than just how they're propelled. Each has strengths and weaknesses that make it better for specific scenarios.
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Why You Should Still Use Your Blinker Even In Dedicated Turn Lanes
We no longer have to rely on hand signals, thanks to blinkers. But many drivers still don't use them for some reason, or aren't sure when they’re supposed to.
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Why Shouldn't You Use Multi-Vehicle ATF In Your Automatic Transmission?
Multi-vehicle automatic transmission fluid might seem like something that's easy to use with any vehicle. But it's better to use more specific fluid.
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Costco Vs. Walmart Car Battery Warranties: What They Promise (And What Owners Say Is Reality)
Costco's and Walmart's batteries are often priced around the same, so warranty coverage can make the difference in where you buy. Here's where details matter.
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Electric Turbos: Are They A Gimmick?
It's up for debate whether electric turbochargers can actually be considered turbochargers, but are they a real game-changer or just a high-tech gimmick?
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When Did Automakers Start Offering A Smokers Package Instead Of The Lighter And Ashtray?
The cigarette lighter and ashtray once were in every new car. Then the culture shifted, and these became options automakers could use to make an extra buck.
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Do Dirt Roads Even Have Speed Limits?
Dirt roads can be difficult for some vehicles to drive on, so you might think there's no reason for them to have speed limits. But that's far from the truth.
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