Engine oils are available with different viscosity grades and numbers and are useful in different situations. This viscosity number is important in affecting or manipulating the performance of your engine in different temperature conditions. For example, viscosity can increase or decrease the heat created by bearings and cylinders. Viscosity can also affect how quickly oil is consumed and how easily your engine could be started and operated in extreme temperatures.

If you use an oil with higher viscosity, it gets thicker at warm temperatures resulting in less oil use and less wear and tears on your vehicles. On the other hand, an oil with less viscosity can help improve the start-up of your engine as well as improve fuel economy.

Not widely used

10W30 is engine oil that is not widely used in modern-day vehicles. It is not much appreciated or recommended by different manufacturers. However, it could be used with light-duty petrol and diesel engines. Like many other engine oils produced today, 10w30 is multi-grade engine oil, providing the fact that it ranges from a lower viscosity grade of 10 to a higher viscosity grade of 30. W stands for winter and the number preceding it is oil’s viscosity at extremely low temperatures, which is 10 for this variant, and the number after it indicates viscosity at higher temperatures.

Engine oils with low viscosities are categorized as good for cold environments because the oil remains thinner. These thin engine oils possess better flow capability and moves quickly. With every startup of these engines in cold temperatures, engine oil needs to travel to the top of the engine and turn back towards the bottom, lubricating each component of the engine for better contact and sliding. With this scenario and vitality to lubricate your engine, engine oil should move quickly. Low viscosities are what made exactly to function like this.

Warm temperatures

With warm temperatures or during the running phase of your engine, the engine heats up and higher viscosities of your engine oil won’t thin out and will keep parts separated by a film or coating of oil. This way, your engine oil always maintains a delicate balance. It needs to flow well when the engine is cold but also retains its proper formation and viscosity at higher temperatures to keep metal parts lubricated and separated.

This is essentially important to keep every part lubricated and separated to avoid disruptions and frictions. An engine with the smooth movement of parts could only generate much-needed thrust and torque to keep you moving safely and securely.