Definition of «oil stains»

"Oil stains" refers to marks or spots on a surface caused by the leakage or spilling of oil.

So quick to apply and you don't have to worry about getting oil stains on your clothing. (theseventhsphinx.com)
Had a guy going door to door with a spray bottle that would remove oil stains from cement. (mechanics.stackexchange.com)
Anyone who does laundry knows how difficult it can be to get any kind of oil stain out of clothing. (marshallcdjr.com)
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