It sounds like a drone or a low pitched rrrrrrr while the car is running. It's constant even when giving it gas. No drivability issues tho. I do have a serious oil leak so I changed the fluid thinking it would lube up the inerts of the engine. It appears to be comming from the belt side of the motor not sure if it's the belts or a pulley. Any help is appreciated.

 

I think its the belts, but check the pulley out too.