Stains will soak up quickly on concrete flooring because it is porous. Any spills should not be left behind, but should be removed as soon as possible. It is much harder to remove later if a spill is left.
Several methods exist for cleaning up oil or grease spills. When it comes to cleaning up oil spills, dirt is considered to be very absorbent. If you decide to use dry dirt to clean your spill, look for it in your garden or yard. Avoid clay dirt, it isn’t effective. Cat litter and sawdust are also good options. Both are effective at absorbing oil. Oil spills should not be cleaned up with sand because it does not absorb the oil.
There may be ways to lighten a stain that has been absorbed into concrete and now appears as an old spill. To remove oil or grease spots, you can use baking soda. It can be made into a paste and then scrubbed with a stiff brush or broom if necessary. It can be lightened up more by trying other things. Leave the oily spot to dry overnight after you pour soda over it. Rinse it off with soapy water and a stiff brush. The spill can also be cleaned by dusting powdered dish washing detergent over it for a short time. Pour boiling water over the area and scrub it with a stiff broom or brush.
Make a solution of 1/2 cup all-purpose cleaner and 1 cup ammonia with 1/2 gallon of cool water to clean the entire garage floor. Whenever you use this solution, make sure the area is well ventilated. Starting at the back and working forward, clean the concrete floor with the solution and a stiff broom. Once you’ve rinsed, run some cool water under your faucet.
After trying home remedies and following the above suggestions, if the results have still not been satisfactory, you may need to look for a commercial remedy. You might consider using a commercial concrete cleaner or trisodium phosphate. It is the best product to use if you are using these commercial concrete products. Follow all instructions carefully and wear the protective equipment recommended. If you need this type of cleaning, you may want to consult a professional. You may also be able to clean with acids.