FAQ: Can a cold water pressure washer remove oil and grease?

Cold water pressure washers alone are not very effective at removing oil and grease stains because they rely on pressure rather than heat. However, you can improve their performance by using a degreasing detergent or surfactant specifically designed for pressure washing. Apply the detergent, let it sit for a few minutes to break down the grease, then rinse it off with high-pressure water.