Suzuki 2002-2005 DF4/DF5/DF6 4-Stroke Outboards Service Manual, Page 12Get this manual
GENERAL INFORMATION
FUELOIL
Suzuki highly recommends that you use alcohol-free unleaded gasoline withminimum pump octane rating of 87method) or 91 (Research method)However, blends of unleaded gasoline and alcohol with equivalent octane content may be used
Fuel tank capacity (Built-in tank) Engine oil
L (USImpgal)