Engine Type: Single-cylinder or twin-cylinder, 4-stroke direct-injection diesel engine [1].Cooling System: Air-cooled (most portable canopy types) or Liquid/Water-cooled (heavy-duty industrial configurations) [1].Speed: 3000 RPM (portable) or 1500 RPM (continuous/long-run stationary types) [1].Starting System: 12V Electric Key Start (typically includes ATS compatibility for auto-switching during blackouts) [1].Fuel Tank Capacity: Generally ranges between 15 to 25 liters [1].Fuel Consumption & Runtime: Consumes roughly 1.2 to 1.8 liters per hour under a standard 75% load, providing 10 to 15 hours of continuous running time on a full tank [1].