Shell Helix HX7 10W30 SN+ is an advanced synthetic technology engine oil formulated to provide reliable protection for modern petrol and diesel engines. Engineered with Shell's Active Cleansing Technology, it actively cleans and protects your engine from harmful deposits while maintaining optimal viscosity under varying temperature conditions. Meets API SN+ standards, offering enhanced protection against Low Speed Pre-Ignition (LSPI) in turbocharged engines.