GM Authority has been busy serving up several exclusive details on the next-gen GM Small Block V8, but now, we're wondering - ...

The thinner in oil is the easier it pumps through the engine, which leads to a fuel economy improvement. We can all understand that, but there's a lot more to oil viscosity than how thick it is. I ...

When it comes to determining and choosing an oil weight, none of it involves weight as we commonly think of it—there are no weight scales involved in weighing oil. Instead, in this circumstance, ...

Every fleet owner should know the basics about the viscosity of the lubricants they are using and why the viscosity matters. Fleets—especially mixed ones—require a variety of lubricants. This ranges ...

General Motors is facing growing pressure from enthusiasts and engineers to move away from ultra-thin engine oils in future ...

Contamination, comingling, mislabeling, and using improper lubricants can all result in equipment performance degradation or failure. Viscosity is the most sensitive physical property of a lubricant.