The recommended lubricant for the 2019 Toyota Highlander is a full synthetic 0W-20 oil. This specification ensures optimal engine performance and protection across a range of operating temperatures. Using the correct viscosity and type of oil is vital for maintaining the vehicle’s engine health and efficiency.
Selecting the appropriate engine lubricant contributes significantly to fuel economy, reduces engine wear, and prolongs the lifespan of critical engine components. The use of synthetic oil over conventional oil offers enhanced resistance to thermal breakdown and superior lubrication properties, especially in demanding driving conditions. Historical context reveals a shift toward lighter viscosity oils in modern engines to meet stricter fuel efficiency standards.