CNG Diesel Dual Fuel-System

Not change the engine anymore,no damage to the cylinder and the dual make the life of the engine longer. after refitted,the dynamic performance of the engine hasn't be changed convenient to change oil or gas.when the gas is burned out,it can be switched to diesel oil immediately. the system with high substitution(average is 50%-70%) rate and good economic performance the method of operation is the same as before,and only need to know how to change the switch with good environmental,and has a distinctly decrease of unhealthy particles and NOx of car exhaust.