We moved and the mixer fell on it side and oil came out of it. Its a Kitchen aid Artisan Model rrk150ww

Nydadinga - Sorry to hear about your fallen mixer. This is not a tragedy, and after cleaning up the grease with soap and water, it should operate normally. Your KA mixer has internal transmission and planetary gears which convert the electric motor's rotation into the mixer's rotation. The internal gears are factory packed with enough grease to last a 'lifetime' (whatever that means), and over the course of your move the shifted mixer leaked the grease inside the transmission housing. You did not mention where the 'oil' was found. Hopefully it was not exuding 'oil' from the brush cover caps located on opposite sides of the body, but coming from the planetary (the part that turns with the blades under the body). I also don't know how old/how used your mixer is. The older the mixer, the more used it is, the more fluid the gear grease, and tend to seep from cracks and gaskets that aren't tight. Gravity can be very insidious. The inspection and troubleshooting of the inside of your mixer is a DITY capability, particularly if your mixer is out of warranty. Just be sure to have the correct Part List manual around when you start to disassemble your mixer. You can download it from KA customer care. Click on Customer Care>Locate Manuals & Guides> Enter the 6 character model number and select the Part List file that is listed. I hope this helps! Howard, Burke, VA