The Lucas Hot Rod oil has zinc, which has been removed from normal oil. This is common, as most manufacturers have gone to a roller style valve train that requires less zinc and thinner lubes. See ...

Zinc dialkyl dithiophosphate (ZDDP), or just zinc, acts as a protective film across working surfaces, enhancing the engine oil's properties by providing a barrier between metal components.

There used to be 1,400-1,500 zinc ppm in [passenger-car] motor oils, about where [Shell] Rotella [diesel-truck] oil is now. We ran those high levels for years and years and never had a problem ...

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 ...

Engine oil additives make all sorts of promises about helping your vehicle's motor last longer and increasing your gas mileage. Here's what you need to know.

Before changing the oil in your older car with a newer motor oil, you may be wondering if you should be adding zinc into your engine. Here's what to know.

Zinc additives are fairly common in oil, especially when treating a classic or high milage engine, but what does the additive actually do for your engine? advertisement. SlashGear.