Intel is using oil solutions liquid to clean transfer oil from cement. Metal and soil. This is an old spill. Stain sheen/rainbow and oil in soil.
They did 2 treatments and have had total success. For small spills, the 32oz spray bottle works best.
The product can be poured straight from the bottle and spread with a broom or mop.
It can also be poured into a watering can for greater coverage area.
For larger spills over a large surface or on grass, soil or on walls, a pressurized pump sprayer works best to ensure contact is made on the entire spill site. A 1-5 gallon hand pressurized pump from a hardware store will cover a large area.