EC21 Product Catalogs - 33cc boat http://www.ec21.com/ec-market/33cc boat.html 33CC R/C Boathttp://lishuhua.en.ec21.com/33CC_R_C_Boat--2037002_2670361.html33cc Burning oil: 25:1 (Gasoline : Lubricating oil) Independently pump cooling system: 4.5-12V Contains clutch equip20090630