Under normal circumstances, most modern engine oil and gasoline brands work fine on their own to keep your engine running smoothly. But there may be cases where even the best of them could use a ...

The best synthetic oils offer more mileage, keep the engine cleaner, perform equally well in low and high temperatures, and protect your engine by keeping wear at bay. When it comes to the topic of ...

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 ...

Let's face it, most engine additives don't really improve performances. If you want to try one that does, here's what you should pick.

Your street machine is an endless source of pride, and by driving it every day, you revel in the fact that it's more than just a "show queen." But after a few miles, you detect a deterioration in its ...

Engine oil seems so simple. It's slippery. It keeps metal parts from fusing together. It's messy, especially when it has been squeezed, slung, and sprayed around the inside of a hot engine for ...

Over time and miles, your car might start to slow down. It might not accelerate as quickly as it once did; the engine may not ...