High-altitude generators are categorized by fuel type, including gasoline, diesel, and multi-fuel generators; by cooling method, such as air-cooled, water-cooled, and oil-cooled; by application, including high-altitude, vehicle-mounted, residential, commercial, and construction site use; by operation time, such as regular and standby generators. Small high-altitude generators typically use air-cooled diesel engines, as the thin air and high altitude at these locations lead to significant day-night temperature variations and some power loss at high altitudes. Larger models requiring water cooling also need modifications, like converting gasoline engines to carburetors and diesel engines to fuel pumps. Search for KUBOTA for more options!