How to Remove Oil Stains from Your Garage Floor with Pressure Washing

How to Remove Oil Stains from Your Garage Floor with Pressure Washing

A clean garage floor can transform the look of your home’s workspace, but oil stains can be a stubborn nuisance. Fortunately, pressure washing offers a powerful solution to this common problem. In this blog, we’ll guide you through the steps to effectively remove oil stains from your garage floor using a pressure washer.

Step 1: Preparing the Area

Before you begin, clear your garage floor of vehicles, tools, and any other items. Sweep away loose debris and dirt to ensure the pressure washer can directly target the stains.

Step 2: Select the Right Detergent

Choosing an appropriate detergent is crucial for breaking down oil. Opt for a cleaner specifically designed for oil and grease, which is compatible with pressure washers. These detergents are formulated to emulsify oil, making it easier to wash away.

Step 3: Apply the Detergent

Apply the detergent to the stained areas. If your pressure washer has a detergent tank, fill it and use a low-pressure nozzle to apply the cleaner. For heavy stains, consider using a scrub brush to work the detergent into the stain before washing.

Step 4: Let It Sit

Allow the detergent to sit on the stain for the amount of time recommended by the product instructions. This dwell time is essential for the chemicals to break down the oil effectively.

Step 5: Pressure Washing the Stain

Attach a high-pressure nozzle to your pressure washer. Start washing the area in a consistent, overlapping pattern, maintaining a steady distance from the floor to avoid damaging the concrete. The high-pressure water combined with the detergent will lift and remove the oil residues.

Step 6: Rinse Thoroughly

After you have thoroughly cleaned the area, switch to a rinse mode if your washer has one, or simply use clean water to rinse away any remaining detergent and loosened oil. Ensure no slippery residues are left behind.


Removing oil stains from your garage floor doesn’t have to be a daunting task. With the right tools and techniques, pressure washing can restore your garage floor to its original look. For those tough stains or if you prefer a professional touch, consider services like Wash-N-It for expert cleaning and maintenance.

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