HKS SUPER ZERO RACING 100% SYNTHETIC Engine Oil 0W-20 4L 52001-AK154 LSPI Compatible

[Features]  This is a new series of HKS high-performance oils for sporty vehicles that require 0W20 as the factory viscosity.  Its excellent fluidity at low temperatures allows oil to circulate quickly throughout the engine immediately after starting.  At high temperatures, it also exhibits excellent HTHS viscosity (high-temperature, high-shear viscosity), exceeding the standard. <0W20: 2.95 compared to the standard value of 2.6; 0W30: 3.73 compared to the standard value of 2.9> It thoroughly protects your engine even under high loads.  Formulated to be compatible with LSPI (Low Speed ​​Pre-Ignition), this oil can be safely used in the increasingly common direct-injection turbo engines designated as 0W20.  Naturally, it also retains the renowned wear resistance of HKS engine oils.  Formulated with a low molybdenum content. For naturally aspirated vehicles, using ADD II in combination with this oil can further improve response. [What is LSPI?] LSPI Low Speed ​​Pre-Ignition: In particular, in direct-injection engines and tuned engines that use a lot of fuel cooling, liquid gasoline adheres to the cylinder walls, diluting the oil on the walls and making it easier to flow. The oil stirred up by the high-speed reciprocating motion of the piston rings and the airflow inside the cylinder rises in temperature due to adiabatic compression of the air-fuel mixture as the piston rises. When the oil temperature exceeds the ignition temperature, it can begin to burn spontaneously (pre-ignition). This is LSPI, a phenomenon caused by the oil. 4L 100% Synthetic