Overview
Toyota Genuine Engine Oil 5W30 protects the engine from energy loss, heat and wearing of contact surfaces caused by friction occurring in the engine. Toyota Genuine Engine Oil 5W30 has five functions: lubrication, cooling, sealing, preventing corrosion and cleaning.

Features
Lubrication
Toyota Genuine Engine Oil 5W30 forms an oil film on contact areas to reduce friction to prevent wearing, energy loss, and seizing.

Cooling
Toyota Genuine Engine Oil 5W30 also absorbs heat from engine parts that become hot from the heat of combustion and the heat produced by friction. The oil then helps to radiate this heat to the outside of the engine.

Sealing
Toyota Genuine Engine Oil 5W30 creates an oil film between the piston and cylinder seals the compressed gas and combustion gas in the combustion chamber to prevent a loss of power.

Preventing Corrosion
Toyota Genuine Engine Oil 5W30 protects the engine from oxygen and water present in the engine to prevent rust and corrosion.

Cleaning
Toyota Genuine Engine Oil 5W30 also washes away sludge, soot, and other substances that build up inside the engine to keep the engine clean.