How can I clean unknown automotive residue off a pyrex cassarole dish?

Question by dankmaster24: How can I clean unknown automotive residue off a pyrex cassarole dish?
I inherited a very large pyrex cassarole dish that was used to hold some sort of dirty automotive oil (possibly motor oil, but not sure). It is now covered in a thick, stick, oily residue. Is there a way to chemically clean this so it is safe to use for cooking, or is this a lost cause?

Best answer:

Answer by Laura
Neat dish soap is a natural decreasing agent
Soak it in this and hot water over night
Give it a quick wash then put it in the dishwasher
If you don’t have one wash several times in hot soapy water

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4 thoughts on “How can I clean unknown automotive residue off a pyrex cassarole dish?

  • January 26, 2014 at 9:54 am
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    Lost cause. The glass will undoubtedly have small scratches in the surface, and I can’t imagine that there is any way to make even a small amount of automotive waste non-toxic. Pyrex casserole dishes are cheap, go buy one at Goodwill if you don’t have enough money to afford a new one, and put this one in the trash can.

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  • January 26, 2014 at 10:06 am
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    hot soapy water with ammonia added , leave for an hour and then empty , repeat with the soapy water and ammonia and add white vinegar , scrub wearing gloves.

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  • January 26, 2014 at 10:51 am
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    You could get most of the oil off using brake cleaner. Do this outside. Then run it through the dishwater or wash it with hot soapy water.

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  • January 26, 2014 at 11:30 am
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    I would try some oven cleaner and a brillo pad. Soak in hot water. Remember to wear gloves.

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