What type and specification of engine oil should be used for the Highlander?
1 Answers
The Highlander uses Toyota-recommended SAE-0W-20 engine oil. Engine oil, also known as motor lubricant, serves multiple functions such as lubrication and wear reduction, auxiliary cooling, sealing and leak prevention, rust and corrosion protection, as well as shock absorption. It is often referred to as the 'lifeblood' of a vehicle. Below is relevant information about engine oil: Summer-grade oils are classified as 20, 30, 40, and 50, with higher numbers indicating greater viscosity and suitability for higher maximum temperatures. Winter-grade oils are classified as 0W, 5W, 10W, 15W, 20W, and 25W. The 'W' stands for Winter, and the smaller the number preceding it, the lower the viscosity at low temperatures, better low-temperature fluidity, and suitability for lower minimum temperatures. All engine oils are formulated from base oils and additives and can be categorized into three types: mineral oil, synthetic oil, and semi-synthetic oil. When selecting engine oil, avoid inferior products as they can cause severe engine wear and affect normal operation.