8 Overlooked Vehicle-Maintenance Services

Vehicle maintenance

These often-overlooked vehicle-maintenance practices can not only help avoid expensive repairs, they can boost performance.



What Your Motor Oil Color Means

Black motor oil usually means the oil is doing its job. Oil that looks like chocolate milk, however, points to serious problems.



Why Do I Need To Change My Oil?

Why change oil?

Why change oil if you haven’t driven that many miles? Because time takes its toll on even the best oil, requiring you to eventually change it.



How Does a Dual-Clutch Transmission (DCT) Work?

DCT Transmission

A DCT transmission is like two manual transmissions working together. One gear shaft contains the even gears, and the other contains the odd-numbered gears.



The History of Synthetic Oil (and AMSOIL)

Conventional motor oil helped doom German soldiers in the Battle of Stalingrad during World War II, intensifying efforts to find a better motor oil. Here’s the story of how synthetic oil came to be.



Championship Engine Builder Trusts Only AMSOIL

Jesse Prather

Jesse Prather has tried a lot of racing oils during his 40 years in the business, and AMSOIL synthetic motor oil has earned his trust. Why? Find out here.



Breaking World Records with a “Bad Habit”

Joey Sylvester

When Joey Sylvester began driving monster trucks, he had one goal in mind: beat Bigfoot’s longest-jump record? Could he do it? Watch his story to find out.



Racing Oil vs. Regular Oil: What’s the Difference?

Some enthusiasts use racing oil in their car or truck. But your vehicle needs an oil that provides benefits racing oils aren’t designed to deliver.



How to Improve Winter Gas Mileage

Car driving in winter

You’ve probably noticed gas mileage drops in winter. Here’s why your vehicle doesn’t return maximum mpg and steps you can take to boost winter gas mileage.



Should I Warm Up My Car in Winter?

Warm up car

It’s tempting to warm up your car in winter by letting it idle for several minutes. But doing so is not only ineffective, it can lead to increased engine wear.