The New Senwei portable Generator is Fuel Efficient and has AC Output of : 220V 1.3kva max. / 1.0kva rated DC Output: 12V/8.3A Phase No. : Single Phase Engine GX90,Max 2.8HP,4-stroke single cylinder, OHV, air cooled Alternator brushless electric machine, synchronous,2-pole,100% Copper Enamelled Wire Starting System Recoil Fuel Tank Capacity: 6.0L Fuel : Petrol Run Time per Tankful 7Hrs@75%Load Dimensions (L x W x H) 460*380*330 Noise Level@ 7 Meters 66dB Weight : 26.5 (THIS MODEL COMES WITH A FOOTBALL INSIDE).......The best product You can rely on  and the generator must go with a recommended oil which the gage is 30cl