Honda’s GX25 360-degree inclinable four-stroke engines can be used and stored in any position through a design that keeps oil in a completely misted state, lubricating moving engine parts and ensuring that oil cannot accidentally flow into the combustion chamber. This quiet, low-pollution four-stroke technology in engines is designed for equipment such as trimmers or small tiller/cultivators that previously could only be powered by two-stroke engines. The design of these engines, including an overhead-valve cross-flow combustion chamber, provides a wide, smooth range of torque.