NISSAN ENGINE OIL LEAK

I Have Nissan Maxima 2003 J 3000cc Milage 100000 The Car Engine Got High Temp. Problem, Water Level Ok, No Leak, Oil Ok, Cooling Fan Ok

Oil Spilled All Over The Engine After The Oil Cap Was Left Off On The Car Listed Above Note. And Now It's Losing Power When Driven. ...

So, I Have A Major Oil Leak, Like So Major That It Seems Almost Like When I Put Oil In It Pours Right Back Out. I've Completed An Oil...