2012 nissan sentra. Pretty bad oil leak led to blowing the motor. Replaced motor, parts/labor $2200. Got a call to come pick the car up and when I got there I'm told they just realized there is a bad oil leak that don't know where it's coming from yet. I had to take off in this car, I had been dropped off there late at night. After about 25 miles all oil was pretty much gone. I'm back to where I was before the motor blew, buying a qt every 20 or so miles. Any chance there's a super easy way to find/fix this problem? I'm lost by myself with this dang car!