Cylinder misfires can turn a smooth commute into a rough, fuel‑wasting slog, and they almost always leave a trail of diagnostic clues if you know where to look. I focus on four of the most common ...

Most people understand that motor oil is a vital component for the internal combustion engines that power most of our cars. Not only does oil act as a lubricant, allowing internal moving parts to ...

Your car's engine, whether gas, diesel, or hybrid, requires sufficient oil to operate smoothly. Too much oil is bad for any engine, but the right amount offers protection against cold starts, reduces ...

The MarketWatch News Department was not involved in the creation of this content. Valvoline's Restore & Protect(TM) is the first motor oil proven to reverse one of the most common causes of engine ...

Problems occurring with new cars and their powertrains are nothing new. Just a quick search on the internet for EcoBoost engine reliability problems, or Honda's 3.5-liter V6 crankshaft problem — which ...

Engine knock is the sharp, metallic sound that cuts through the hum of a healthy engine. At its core, engine knock is a problem of timing. In a knocking engine, parts of the air-fuel mixture don't ...

Valvoline's Restore & Protect™ is the first motor oil proven to reverse one of the most common causes of engine failure by freeing stuck piston rings and maximizing the life of the engine. LEXINGTON, ...