Liqui-Moly-4012-Valve-Protection-for-Natural-Gas-Vehicles-1l-Liqui-Moly-4012-P-align-left-This-valve-protection-for-natural-gas-vehicles-1l-from-Liqui-Moly-has-been-developed-for-gas-powered-vehicles-CNG-LPG-&-protects-the-valves-in-the-engine-absorbing-peak-temperatures-Optimal-lubrication-&-clean-combustion-contribute-to-avoiding-expensive-repairs-&-engine-damage-P-Liqui-Moly-4012-Valve-Protection-For-Natural-Gas-Vehicles-1l