A tire mark on your concrete driveway is an unsightly blemish. Car or bicycle tires can leave their marks just from sitting in the hot sun. Accidental tire spins also mar the concrete. Once ingrained into the surface pores, these marks can be difficult to remove. All tires are made with petroleum-based chemicals, which means they have an oily composition. This composition will resist regular soap and water.
Apply a coating of degreaser solution thick enough to completely cover the tire marks. Scrub the solution in with your brush to penetrate and loosen the tire rubber.
Allow the degreaser to sit on the tire marks for several minutes. This will allow the chemicals in the degreaser to actively work to loosen and dissolve the oil and the rubber from the tire marks.
Attach your garden hose to the pressure washer and turn on the water valve. Start your pressure washer by pulling the starter rope, if it is gasoline powered, or plug it in if it is electrically powered.
Pick up the wand, which is attached to the washer with a hose, and pull the trigger to release a stream of pressurized water. Pressure wash the solution-covered area with a 2-inch stream of water, which is adjustable at the nozzle tip. Play the stream back and forth across the marks until they are gone. If results are not satisfactory, cover the area with another brushing of degreaser and pressure wash the area again.