For smaller car rental operations, thoroughly cleaning returned vehicles can be challenging when employees, time, and resources are limited. Below, Rent-a-Wreck offers 15 car detailer-approved cleaning tips that help streamline the car cleaning process, maximize efficiency, and ensure vehicles are spotless for the next customer. 

• Rinse Before Washing: If you hit your dry paint with soapy water, you’ll just grind the surface dust and road grit into your paint finish. Professional detailers always start with a clear water rinse to remove as much dust and dirt as possible.

• Use the Right Soap: Dish washing liquid is the go-to choice for most DIYers. But it shouldn't’t be. Dishwashing detergent is simply too harsh. It sucks important oils out of your car’s finish and can actually shorten the life of your paint. A car detailer will use car wash soap for professional car detailing.

• Forget The Sponge, Use a Microfiber Mitt: Sponges capture and hold dirt and grit in their large pores. You can wring it out but the grit will stay put. Once grit is embedded, you may as well wash your car with sandpaper. A car detailer will use a microfiber car wash mitt because the grit falls out when you rinse.

• Use Two Buckets: One for clean soapy water, one for rinse water. After each wipe, dunk your dirty wash mitt in the rinse water bucket and swirl it around to dislodge the dirt and grit. Then dunk it in the soapy water and pick up where you left off. Dump the dirty rinse water and refill clean water before you move to the other side of the car. That’ll keep the soapy water clean.

• Forget the Chamois, Dry With a Microfiber Towel: Chamois soak up water, but they don’t pick up any grit that’s left after rinsing. Instead, they just grind those particles into your paint.  A microfiber towel, on the other hand, collects the particles. Rinse the towel in clean water to remove the grit. Then wring and keep drying.

• Remove Minor Scratches Before Polishing: This step is what separates the DIYers from professional car detailing. Polishing increases the shine, but it doesn't’t remove scratches. However, if you remove the scratches first with a scratch removal kit and then polish, you’ll get even more shine. Find scratch removal kits at any auto parts store.

• Buy a Dual-Action Polisher: A car detailer wouldn't’t be caught dead without a dual-action polisher. Don’t confuse this incredible tool with a high-speed buffer! Buffers run at much higher speeds and can burn the paint right off your car if you stay in one place too long or press too hard. Polishers are different. They run at lower speeds and oscillate as they rotate. Any DIYer can get the hang of polishing in just a few minutes. Polishing before waxing makes a huge difference, so your investment really pays off. One more polishing tip from professional detailers – apply the polish to the machine’s pad. Then wipe the pad across your paint. That’ll prevent all the polish from flinging off the pad as soon as you hit the trigger.

• Use Synthetic Wax: Old style paste waxes look great on antique cars. But they don’t produce the same ‘wet look’ as modern synthetic wax, and they don’t last as long. When car dealers sell paint sealant, they’re really just applying high-quality synthetic wax, which is something you can do yourself for a fraction of the price. Apply synthetic wax in small sections using a wax applicator sponge.

• Remove Wax Haze With a Microfiber Towel: You guessed it, microfiber towels are the heroes of car detailers everywhere. Wipe off the wax haze using circular motions. As the towel loads with wax, refold it to a cleaner section. Use a second towel when the first one is fully loaded.

• Start At The Top: DIYers usually start by vacuuming the carpet. That just pushes the dirt from your dash, seats and door panels back onto your freshly cleaned carpet. Professional detailers start at the top and then work their way down to the carpet.

• Suck It Up As You Go: Use a small detailer’s brush and shop vacuum to remove dust and dirt from all the nooks and crannies on your dash and console. It’s tool of the trade in the world of professional car detailing. Hold the shop vacuum wand near your brush and suck up all the crud as you work your way down to the floor.

• Brush and Vacuum Your Carpet: Automotive carpet doesn't’t like to let go of dirt. If you just vacuum it, you’ll leave plenty of dirt behind. To remove more dirt, detailers use a stiff brush and scrub the carpet as they vacuum. You’ll see the dirt particles bounce to the surface so you can suck them up with your shop vacuum.

• Use a Non-Silicone Matte Finish Dash And Vinyl Protectant: Silicone dashboard protectant sprays leave a slick film on your dash that actually attracts more dust, so you’ll have to clean it more often. Plus, a shiny dash reflects into your windshield. That reflection and glare can reduce  your vision, especially at night. That’s why professional detailers use non-silicone matte finish protectants. They still look great and they reduce glare.

• Lubricate Door Seals: You probably wiped off any door seal lubricants when you cleaned the door. Detailers make it a point to re-treat the seals with silicone spray. Spray some on the rag and wipe it around the entire door seal. The silicone prevents the seal from sticking in summer and in winter.

• Finish With the Glass: If you cleaned the inside of your windows before you cleaned the dish and applied vinyl protectant, you’ll just have to clean them again. That’s why detailers save the glass cleaning until the very end. Cleaning the windows at this point removes all cleaning and vinyl treatment overspray and leaves you with sparkling clean windows.