ABSTRACT
The rate at which energy is lost by human activities is enormous. There is need to work on how to generate more energy and minimize the usage of the generated energy. In an internal combustion engine, there is need to focus on gaining energy usage by using generated heat during combustion process. To reduce the energy usage, emission rate and improve the efficiency of four-stroke internal combustion spark ignition engine, the four-stroke internal combustion spark ignition engine is modified into a six-stroke internal combustion spark ignition engine. The heat generated from four-stroke cycle is used in six-stroke cycle for additional power stroke and exhaust stroke of the piston in the same cylinder. There is an injection of water which form steam with the help of generated heat from four-stroke cycle which forces down the piston for additional power stroke and the piston come up for exhaust of gases out of the cylinder. With the injection of water into the cylinder, there is no need of cooling system as in four-stroke Otto cycle which makes the engine become lighter and 25% fuel and power efficiency over the normal Otto cycle.