Mysest56 
January 6, 2020
Dish soap, which cuts grease in the dishwater, also comes in handy for cleaning oily spots on concrete flooring, like the garage floor. Even for overall concrete flooring cleaning, a small dish soap in a bucket of water does the trick — no special floor cleaners needed.
Oil-Spot Treatment
Remove oil stains from concrete flooring using a dish-soap scrub. Wet the surrounding concrete first, which helps prevent the oil from soaking in. Squirt dish soap above the stains. Dip a scrub brush into a bucket of warm water and bathe the affected area, working the soap into a lather. The soapy subsequently helps raise the oil out of the concrete. Blot up the suds with rags or paper towels; then rinse the floor with clean water.
General Concrete-Floor Cleaning
Sweep the floor to remove loose debris like dust, leaves and dirt. Fill a bucket with hot or warm water, adding a squirt or two of dish soap. Mop the floor with the mildly soapy water. For tough stains, sprinkle a little baking soda or borax on the spots and dip a brush into the water, tackling the stains using the brush.