In converting low speed engines (=750 RPM), gas injection will be used for mixing the air and gas in inlet manifold. In this system, gas injectors controlled by electronic management unit. Amount of injected gas mainly depend on engine load and engine temperature which recognized by controller.

This conversion is very cost effective because of controlling low amount of gas used by engine and reduces the diesel fuel up to 10% and even lower, beside of capability of continuous and safety operation engine.