Additives represent 15 to 20 percent of a gallon of oil with the balance being high-quality base oil. Additive packages play a key role in helping to keep an engine clean and protected from varnish ...

Putting vegetable oil in a car engine is a terrible idea and should never be done, or at least that's what some experts say. What do real-life tests show?

Snake oil. Mouse milk. Whiffle dust. Take your pick — few products have earned such unflattering sobriquets as aftermarket motor-oil additives. And for the very good reason that these promised ...

Aftermarket additives are a popular off-the-shelf item at truck stops and parts counters, but many of the necessary additives already are formulated in the diesel engine oils directly from the ...

Additives are like energy drinks for your engine or at least that is how they are marketed. The additives supposedly help your engine to run smooth, become more powerful and fuel efficient, protect ...

Regardless of whether it burns gasoline or diesel, your internal combustion engine works by igniting a mixture of fuel and air to create power. To do so effectively, it must reduce the detrimental ...

Given all the options for motor oil options out there, choosing the right oil for your car might seem like a daunting task. While there is a mountain of information about the various oil choices, the ...

This image taken with an electron microscope shows that tiny carbon spheres added to motor oil reduce friction and wear typically seen in engines by as much as 25 percent, suggesting a similar ...

When you build, rebuild, or buy a new engine, one necessary concept for you to consider is that of breaking the engine in properly for use. This is an important part of your engine's life, and without ...