How to Win a Car Show

We asked car show experts what it takes to win a car show. Follow this advice and you may leave your next show with a trophy in hand.



An Eye for Detail Sets Kenny Hauk Apart

Kenny Hauk is at it again. Follow the progress of his latest creation as he and his crew rebuild a 1974 Mercedes-Benz Unimog.



Break-In Oil: What is it and When Do I Use it?

Break in oil

Break-in oil seals the piston rings to the cylinder wall for maximum power and minimum oil consumption. Here’s how it works and when to use it.



Do I need a Diesel Coolant Additive?

Semi trucks lined up

Adding a diesel coolant additive, or supplemental coolant additive (SCA), midway through the service interval is easy to overlook and fraught with problems. Here’s a better way.



A Beginner’s Guide to Motor Oil: What You Need to Know

Pulling oil dipstick

Motor oil seems simple. You pour it in your engine and drive away. But motor oil is far more complex…and important. Here’s what you need to know.



AMSOIL vs. Harley-Davidson Oil: How We Perform

AMSOIL vs. Harley Oil

We submitted AMSOIL synthetic motorcycle oil and Harley-Davidson SYN3 oil to independent testing. Who came out on top? Find out here.



Murray Pfaff: Turning Concepts into Reality

Murray Pfaff

Murray Pfaff has built some of the baddest cars imaginable, including “FireMaker,” which makes a ton of power and a pair of flames from its flamethrowers.



How to Check Power Steering Fluid (and When to Change it)

Check power steering fluid

There are a couple ways to change power steering fluid, depending on your technical know-how. Here’s how.



What’s the Best Synthetic Motor Oil?

Signature Series oil change

Want the best synthetic oil for your engine? Many oil companies say they have the best, but we offer the scientific data to back it up.