single-cylinder,4-stroke ,air-cooled ,OHV, Horizontal side shaft,Auto-Speed gasoline engine with CE,CCC,ISO9001certifications Gasoline Engine ModelDB-168FDB-168FADB-168-1DB ... .8(7.0HP)5.1(9.0HP)6.75(13.0HP)9.6(15.0HP)11Rated power(4.0HP)3.0(4.0HP)3.0 ... (5.8HP)4.3(6.0HP)4.4(7.4HP)5.5(11.7HP) ... oil system capacity(L)0.60.60.60.61.11.11.1Fuel tank capacity3.63.63.63.66.56.56. ...