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The best driveway cleaner for oil stains depends on the type of surface and the severity of the stain. An absorbent abrasive like baking soda works for many circumstances. By following up the baking soda with a white vinegar rinse, you can increase the effectiveness and ideally remove the stain for good. Concrete oil stains may respond better to oil stain removers designed specifically for concrete if the stain is tough to remove with at-home ingredients.

You should always power wash your driveway before applying a sealant. At any given time, your driveway could be covered with algae and moss, tire residue, oil and rust stains, and any combination of leaves, twigs, and dirt. If you skip power washing, you’ll be trapping the dirt and grime beneath the sealant and lowering its chance of cementing itself to your driveway. While you can expect the cost to pressure wash your driveway to average between $100 and $350, the few hundred dollars beats an unattractive driveway or paying extra to reapply your driveway sealer.

The ideal PSI (pounds per square inch) for a pressure washer depends on the surface you are cleaning. For general home use, a pressure washer with a range of 2,000 to 3,000 PSI is recommended and powerful enough for most residential projects.

The specific PSI you should use varies by task:

• High-Pressure Tasks (2,500-3,000 PSI): Tough materials like concrete, stone, masonry, and brick can handle higher pressures. This is suitable for removing stubborn stains from driveways or cleaning graffiti.

• Low-Pressure Tasks (around 600-1,300 PSI): Softer surfaces require a gentler touch to avoid damage. Use a low PSI setting for cleaning wood decks (especially softwoods like pine and cedar), vinyl siding, outdoor furniture, and stucco.

For best results, choose the right nozzle for your surface, such as a 15-degree nozzle for siding or a surface cleaner attachment for driveways. Using an extendable wand can also make the work easier and more ergonomic.

Yes, you can use a mixture of 1 tablespoon of bleach and a gallon of warm water to clean stubborn stains from brick. Do not use bleach without diluting it in water. Undiluted bleach may cause discoloration. You can use either Oxygen bleach such as OxiClean or chlorine bleach. Always wear protective gloves and eye protection when handling bleach.