Motor oil instead of antifreeze/coolant

Tiny
FREEPOG
  • MEMBER
  • 2004 BMW 318I
  • V8
  • 2WD
  • MANUAL
  • 87,000 MILES
I have topped up my antifreeze/coolant tank with motor oil by mistake this evening at home (2004, Petrol engine BMW). I am wondering what the implications could be and appreciate any advise.
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Tuesday, May 3rd, 2011 AT 7:24 PM

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Tiny
WRENCHTECH
  • EXPERT
That is going to be very difficult to get back out. If you haven't started it yet, remove the reservoir and clean it out thoroughly. If the engine has been run, you are going to have to drain all the coolant, fill it with water and add some dish washing liquid. Run the engine and flush it thoroughly with water. Repeat if necessary and then refill with coolant. It may have to be repeated a few weeks down the road.
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Tuesday, May 3rd, 2011 AT 8:41 PM

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