What does 5W30 Oil mean? Iva Larochelle September 29, 2020 Automotive You have heard about different oil grades and viscosities with different specialties and various operating measures, as well as, serving different engines, and in different operating environments. But the most probable and suitable engine oil is what is recommended by your manufacturer in the owner’s manual. This is what defines your engine and preserve it in every operative environment, as well as, in different working conditions or temperature situations. All engine oils are categorized concerning their viscosity, resistance in streamline flow, and how well it performs and delivers at temperature extremes. The ideal engine oil for your vehicle is one that sustains its viscosity and grade, even in the hottest temperatures as well as in the coldest temperature situations. 5w30 oil is suited to a broad range of temperatures, making it one of the most commonly used oils on the market. Two types of vehicles 5W30 is engine oil that is not specifically built for one or two types of vehicles. It could be used with light-duty petrol and diesel engines. Like many other engine oils produced today, 5w30 is multi-grade engine oil, providing the fact that it ranges from a lower viscosity grade of 5 to a higher viscosity grade of 30. The acronym W in an engine oil name corresponds for winter and the number preceding it is oil’s viscosity or thickness number at low temperatures, and the number after it indicates viscosity at higher temperatures, while the engine is running, friction is at maximum and temperature is higher. 5W30 engine oil has a viscosity grade of five at extremely lower temperatures, meaning it will be less viscous at low temperatures compared to higher viscosity counterparts. It possesses a high viscosity grade of 30, which implies it is less viscous at high temperatures as well than higher viscosity counterparts. 5W30 engine oil is bound to properly function in temperatures as low as -30ºC and as high as 35ºC, making it an ideal choice to drive in a high-temperature variations area. Most commonly used engine oil 5W30 engine oil is categorized as the most commonly used engine oil. The reason behind this is its suitability for a wide variety of vehicles. With this viscosity range, it can lubricate, seal, and protect an engine’s internal components with every climate condition. Its ability to function properly in summer, as well as in winters, could bring the convenience of no need for changing oil with the change of seasons. 5w30 oil’s lower viscosity also means less strain on the oil pump, as well as better fuel economy. These are all the characteristics that build a strong impression and make it last longer with the required conditions.