A fuel oil viscometer is a unique instrument to measure the thick or thin quality of liquid fuel oil. Fuel oil is what fuels much of that machinery and those vehicles. And it can be very thick and viscous, sort of like syrupy; and it can be very thin, sort of like water. Understanding how thin the oil is enables companies to determine how best to use it. For instance, oil that is too thick might not circulate well in engines. If it’s too thin, some of it might not scorch adequately. ZONWON manufactures Viscometers that allow people to easily test, the thickness fuel oil. That is very valuable for engines and machines as well.