Solving the Challenges of Flat-Tappet Cams in Classic Car Engines

custom 1961 chev impala coupe

One of the big concerns among classic car owners in recent years has been the abundance of flat-tappet camshaft failures many attribute to the reduction of zinc and phosphorus in today’s oil formulations.



Making Sense of New Oil Specifications: GM dexos and API SN Plus

check your oil for vehicle longevity

As engine-operating conditions grow more severe, so do the demands placed on your motor oil.



9 Tips for Safe Trailer Towing

Chevrolet silverado 1500 Towing Camper

Friends of mine in Minneapolis were driving on Highway 35, talking about this and that, minding their own business, when – Wham! A trailer carrying a boat slammed into their car.



How Do I Switch from Conventional to Synthetic Oil?

conventional and synthetic oil

To borrow a famous slogan, just do it. There is still some confusion about changing to a different type of oil in vehicles, particularly older models that have accumulated many miles. A small group of ill-informed individuals in garages and on blogs still cling to old beliefs that synthetic motor oils cause roller followers to

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Do Motor Oil Additives Work?

conventional and synthetic oil

What do motor oil additives do? The shelves at your local auto parts store are full of aftermarket motor oil additives and oil treatments that promise a cornucopia of benefits, such as… Increased fuel economy Reduced friction Maximum horsepower Improved engine cleanliness To provide this added performance, aftermarket motor oil additives use different chemical components

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How a Differential Works (and the Type of Gear Lube to Use)

Think of all the devices we take for granted that improve our lives. The refrigerator. The microprocessor. The air conditioner. The spork.



What’s the Difference Between DOT 3 and DOT 4 Brake Fluid?

Glowing red brake rotor from heat

The primary difference between Dot 3 and Dot 4 is their respective boiling points. I suspect I know your next question. But first, some background. The U.S. Department of Transportation classifies brake fluid into four main categories:



Carlisle Car Shows: While You’re There, Check These Out

old canon at gettysberg

  Each year, thousands flock to the Carlisle, Pa., fairgrounds for the sights and sounds of the Carlisle Events Car Show Series. Whether your automotive preference lands you firmly in the Ford, Chevy or Mopar camps – or somewhere else altogether – there’s something for everyone at Carlisle.  



Busting the 3,000 Mile Oil Change Myth

3000 mile oil change myth - change oil in your car

Changing your oil every 3,000 miles is a practice passed down for generations. The origin likely stems from the noble effort to provide consumers with a simple vehicle-maintenance rule that left plenty of room for error.



Are all Synthetic Oil Groups the Same? Group III vs IV vs V

Amsoil quality control oil testing

The simple answer No. In fact, there are wide performance differences between base oil group categories. Generally speaking, Group IV base oils offer the best performance, Group III second best, and so on in reverse order. But be forewarned – there are exceptions. And, you can’t judge motor oil performance solely on base oil type.