These vehicles are powered by natural gas exclusively.
Bi-fuel applies to passenger vehicles using gasoline as motor fuel, whereat the vehicle is powered by CNG with a possibility of using gasoline as back-up fuel. This mode enables savings of up to 50%.
This technology applies to different vehicle types using diesel as primary fuel. Dual fuel is combined blending of diesel and CNG in a specific proportion, directly leading to lower diesel consumption and savings even up to 35%.