2005 Kawasaki KAF620 Mule 3010 Trans 4x4 Service Manual, Page 151Get this manual
ENGINE LUBRICATION SYSTEM 7-9 Engine Oil and Oil Filter
If 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 openingUse the same type and make of oil that is already in the engine[A] Oil Filler Cap When removing or adding the oil through the filler opening, perform the following proceduresIn 4-person mode, first fold the rear seat and push its assembly into the stored position, and then raise the cargo bed and support it with the rodIn 2-person mode, raise the cargo bed and support it with the rod