Three Ultimate, Platinum, or Extreme Lava Car Washes at So Cal Express Car Wash (Up to 51% Off)

So Cal Express Car Wash So Cal Express Car Wash

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In a Nutshell

Car-wash techs leave your vehicle sparkling with services that include Rain-X protectant, carnauba wax, tire shine, and more

The Fine Print

Promotional value expires 120 days after purchase. Amount paid never expires. May be repurchased every 180 days. Limit 1 per person. Limit 1 per visit. Valid only for option purchased. So Cal Express Car Wash has a no-tipping policy, so gratuity is not needed. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

Choose from Three Options

  • $15 for three vouchers, each good for one Ultimate car wash ($30 value)
  • $18.99 for three vouchers, each good for one Platinum car wash ($39 value)
  • $21.99 for three vouchers, each good for one Extreme Lava car wash ($45 value)

Every wash includes a free air freshener. See what’s included in each wash here.

Rain-X: Putting Drivers in the Clear

Rain-X doesn’t just make your car look better—it also makes you safer. Find out how with Groupon’s exploration of this water-repelling substance.

When rain beats down on a windshield, it can react one of two ways. It can splash indiscriminately across the glass, causing light to scatter and cloud the driver’s visibility. Or, if the glass is treated with a hydrophobic solution such as Rain-X, the random splashes can turn into cohesive beads that trickle quickly off the windshield and out of sight. This process seems straightforward, but the effects are actually quite dramatic—a 1997 study by the University of Michigan concluded that participants driving behind a hydrophobic-treated windshield had an increased reaction time averaging one additional second over drivers with untreated windshields.

Developed more than 40 years ago, the chemistry behind Rain-X draws largely on two familiar substances: ethanol and isopropanol, or rubbing alcohol. Several organic methyl and synthetic silicone molecule chains dissolve in the alcohols to sheath glass in a water-repellent layer. From the original windshield solution, Rain-X has expanded its water-beading technology into other products, including wiper blades and full-car waxes. Innovative users have called on Rain-X to repel moisture from the top sheets of skis to submarine antennae, an application discovered by Australia’s Department of Defense.

Customer Reviews

The price and service are above average. However, the last three to four times I had my truck washed, I noticed my truck was still dirty and the car wash did not fully clean the exterior to my truck.
Chris O. · August 2, 2017
Great wash for a great price
Uriah C. · July 23, 2017
Straight forward car wash. Always a good experience.
Thom L. · July 21, 2017

By purchasing this deal you'll unlock points which can be spent on discounts and rewards. Every 5,000 points can be redeemed for $5 Off your next purchase.