What is the model number of all-season engine oil suitable for northern regions?
1 Answers
Northern all-season engine oil generally adopts the 10W40 specification, as most automotive lubricants nowadays are designed for year-round use. Engine oil, also known as motor lubricant, performs multiple functions including lubrication, wear reduction, auxiliary cooling, sealing against leaks, rust and corrosion prevention, as well as shock absorption - earning it the nickname "automotive blood". Oil specifications are categorized into summer, winter, and all-season types. Winter-grade oils are labeled 0W, 5W, 10W, 15W, 20W, and 25W, where "W" stands for Winter. A lower number preceding the W indicates lower viscosity at cold temperatures, better low-temperature fluidity, and suitability for colder minimum temperatures.