... ,4-stroke,air-cooled,direct injection,diesel engine Engine type Single cylinder,4-stroke,air-cooled,direct injection,diesel engineBore*stroke ... (cu.in)] 211Engine speed(rpm) 1500/1800Compression ratio 20:1Rated output power[kW(HP)/rpm] 2.5(3.4)/1500,2 ... (57.2)Lube brand SAE10W30(above cc grade) 75,80 Series of single cylinder of the water cold diesel engine