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I was flushing my radiator and I got water in my oil. What do I need to do?

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    It would really help if you explained a bit more. How did you get the water into your oil? Any idea how much water?
    – dlu
    Dec 27, 2016 at 22:30
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    As @dlu stated, please. And remember, we aren't here to judge, only to help. Dec 27, 2016 at 22:33

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The conservative thing would be to do an oil change.

But if it is a relatively small amount of water, I don't think I'd worry too much about it. Just drive the car soon so that the engine gets completely up to operating temperature and the water evaporates.

Where I would be concerned is if there was a chance that enough water got in so that the oil pump pickup could be sitting in a pool of water under the oil.

If you're concerned that a lot of water may have gone into the engine – for example if you mistook the oil fill for the radiator cap (I've done worse) – you can get a rough idea by looking at the dip stick. Oil will float on top of the water and if your oil is suddenly much higher then you know you've got a lot of water in there. Then I would change it for sure.

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  • I was flushing the radiator and grab the wrong hose and now my oil milky Dec 27, 2016 at 22:40
  • @Michaeldavis, any idea how much water and where it went in?
    – dlu
    Dec 27, 2016 at 22:42
  • Not a whole lot.. But now oil looks milky. Should I just change the oil and be done with it or????? Dec 27, 2016 at 22:44
  • Personally, I would probably use it as an occasion to do an oil change – have you run the engine? I'm curious about the milky part, I wouldn't expect that to happen unless the engine was run, but I don't have all that much experience with water in the oil.
    – dlu
    Dec 27, 2016 at 22:46
  • Yes. Change the oil and be done with it. You may want to change it a second time if it's milky. Change it, run it a bit, change it again. Cheers! Welcome to the site! Dec 27, 2016 at 22:47

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