2005 Kawasaki KAF400 Mule 600 and Mule 610 4x4 Service Manual, Page 134Get this manual
ENGINE LUBRICATION SYSTEM 6-7 Engine Oil and Oil Filter
levelThe oil Pull out the oil level gauge and check the oil"L"(Low) lines level should be between the "H"(High) and [A] on the dipstickIf the oil level is too high, remove the excess oil, using syringe or some other suitable device, or removing the engine oil drain plug, drain the excess oilIf the oil level is too low, add the correct amount of oil through the oil filler holeUse the same type and make of oil that is already in the engine