For 85 years Perkins has led the field in the design and manufacture of high-performance gas and diesel engine. Our continuous development programme allows us to offer one of the most advanced and comprehensive ranges of purpose-built diesel and gas engines available today. Globally, there are increasingly stringent standards on emissions ? and the technology we use ensures our products meet the standards wherever the engines are being used in the world. Engine performance comes down to controlling engine speed: reaching operating speed, maintaining speed under load and responding to operator demands. Explore these elements and learn about cold starts, speed controls, torque backup, and more.