What is the durability of the Hydrowinch to withstand harsh conditions? Our winches are powered by industial common rail diesel engines. These engines are designed to operate in environments anywhere in the world, you will find many of these engines pumping oil in deserts around the world. This also applies to our hydraulic drive system. Because our hydraulic drive system is very efficient (>95%), we do not generate much heat. The oil is cooled constantly, even when the winch is running idle. Our winches can be operated in any environment across the USA.