N6500E Generator Rated Wattage: 5500W Surge Wattage: 6500W Rated Voltage: 120/240V,230V Rated Frequency: 60Hz/50Hz Phase: Single DC Output: DC 12V/8.3 A Engine Engine type: 4-stroke OHV single cylinder with forced air cooling system Ignition system: Non-contact transistor Spark Plug; NGK BPR 6ES, F7RTC Displacement: 419cc Starting type: Electric start /Recoil Fuel: Use clean, fresh, regular NG with NG gas pressure area: 1.5K～2.2KPa. Oil capacity: 1.1L(37fl oz.) Engine oil grade: SAE 10W30 SG or SF Valve Clearance: Intake 0.10-0.15mm (0.004-0.006 in.) Exhaust 0.15-0.20mm (0.006-0.008 in.) Noise Level: 75dB@7m (22 feet) Packing Dimensions (in): 30.2 "×22.5 "×24.2 " load(Units): 128pcs/1x20GP 256pcs/1x40GP