Rain-X® Heavy Duty Car Wash
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Rain‑X® Heavy Duty Car Wash is a dual action pre-wash treatment and car wash concentrate that can be used for any level of wash. Use the formula by itself to spot treat the toughest dirt or mix it with water for a full vehicle wash.

The concentrate is specifically formulated to loosen and release dirt while conditioning the vehicle’s surface for a long-lasting glossy shine.

Product Features

  • Multi-Purpose: Use as a pre-wash spot treatment and a car wash concentrate
  • Saves Effort: Releases the toughest, caked on dirt without heavy scrubbing
  • Saves Time: No need for other pre-wash products or multiple washes
  • Safe for All Surfaces: Won’t scratch or damage finishes

Product Usage Instructions

  1. Wash and rinse one section at a time.
  2. Hose off any heavy dirt and debris from the vehicle first.
  3. Shake bottle well before pouring.
  4. Spot treat extremely dirty areas by pouring product directly on the dirt. Let sit and rub clean with a 100% cotton cloth or microfiber towel.
  5. For a full vehicle wash, pour concentrate into an empty bucket and mix with a powerful spray of water. Use 1 fluid ounce of concentrate per gallon of water.
  6. Start at the top of the vehicle and work your way down. Apply the prepared soapy water to one section at a time, using a clean sponge, 100% cotton cloth, or wash mitt.
  7. Rinse surface thoroughly with clean water.
  8. Dry with a 100% cotton cloth, microfiber towel, or chamois.
  9. For best results avoid washing vehicle under direct sunlight.


Available at Select:

Advance Auto Parts