HKS Racing Oil 10W-40 4L Super Boxer

HKS Racing Oil 10W-40 4L Super Boxer HKS Racing Oil 10W-40 Super Boxer (4L) delivers high-performance engine protection engineered for racing and spirited driving. Formulated by HKS, this synthetic blend oil balances robust wear resistance with excellent thermal stability to keep high-revving engines running cooler and cleaner. Viscosity: 10W-40 — optimized for stable lubrication across a wide temperature range Capacity: 4 liters — convenient refill size for performance vehicles Performance: Enhanced shear stability and anti-wear additives for improved camshaft and bearing protection Thermal & Oxidation Protection: Resists breakdown under high load and high RPM conditions Cleaner Engine: Detergents and dispersants reduce deposits for better throttle response and longer engine life Ideal for track days, modified engines and performance-oriented street cars, HKS Super Boxer 10W-40 helps maintain consistent oil pressure and reduces friction for maximum power delivery. Trust HKS racing expertise to protect your engine when it matters most.