HKS SUPER BOXER RACING OIL 10W40 1 Ltr 100% SYNTHETIC OIL - LSPi Protection

HKS bestseller engine oil series "SUPER OIL" are refined with an additive made by the latest technology that fights against LSPI(Low Speed Pre-Ignition).

• Effective against LSPI(Low Speed Pre-Ignition)
  HKS bestseller engine oil series "SUPER OIL" are redesigned by the latest technology; an additive was prescribed and added to the oil to protect the engine against the effects of LSPI (Low Speed Pre-Ignition) which tends to occur to a downsized turbocharged engine.
  Usually, LSPI occurs when low viscosity engine oil is used to a downsized turbocharged engine; however, even high viscosity engine oil is used, if the engine is a high compression and high boost tuned direct injection turbocharged engine, and it is run under severe combustion condition, LSPI may occur. New "HKS SUPER RACING" series are the unprecedented high viscosity engine oil that can protect the engine from LSPI.
• Base Oil is 100% Synthetic Oil
  The base oil to maintain the oil basic performance is 100% Synthetic Oil. The best viscosity and ingredient is selected for each engine specification.

Ideal for Horizontally Opposed Engine like FA or EJ.

• Stock Grade : *W40
• Volume : 4L / 1L
• Target: Horizontally Opposed Engine with Bolt-on Turbo and/or Boost Increased Vehicle
• Engine: FA20(S/C or BOT)　EJ2#　FB2#, etc.

Sufficient oil film strength and appropriate viscosity reduces the noise occurs at a low temperature.

What is "LSPI"？

• LSPI stands for Low Speed Pre-Ignition
• For the tuned engine that requires fuel cooling and direct injection engine, gasoline adheres to the cylinder, and it dilutes the oil on the wall surface that makes smooth flow.
  The temperature of oil that is blown up by a high speed piston ring and/or air flow inside a cylinder increase by air mixture adiabatic compression caused by raising piston. When this oil temperature exceeds the ignition temperature, it causes pre-ignition. This is one of causes of LSPI.
  For a highly tuned engine, LSPI may occurs at intercept due to its ultra-high boost. LSPI may cause knocking that cannot be stopped even ignition timing is delayed.

Oil Effective against LSPI

• Making an oil effective against LSPI requires to devise blending of additives to prevent pre-ignition.
  Usually, Ca (calcium) is contained in an additive for oil cleaning, and when oil is degraded, 
  Ca acts as a fire starter causing pre-ignition. 
  HKS new oils contains newly developed a magnesium-containing additive instead of calcium as a detergent dispersant.