OEM Oil Dip Stick. Fits (2002-2007 F12) (2002-2007 F12X) (2003-2007 R12X) (2004-2007 R12). To Properly Check Oil Level, Start Engine and Let it Idle to Get the Engine Warm. After Machine is Warm Use the Dip Stick on The Oil Tank. If you Check the Oil While the Machine is Cold and Oil is on the Dipstick, you have Overfilled the Machine.