Top 7 Myths About Car Washing—Busted

Aug 8, 2025 | Car Maintenance, Car Spa, Car Wash, Detailing, Exterior Detailing, Interior Detailing

Car washing seems straightforward enough—soap, water, scrub, rinse, done. Yet despite washing being one of the most common vehicle maintenance tasks, misconceptions about proper car care run rampant among car owners. These myths don’t just waste your time and money; they can actually harm your vehicle’s paint, interior, and overall longevity.

From backyard washing techniques passed down through generations to well-meaning advice from friends, misinformation about car washing spreads easily. Some car owners believe that any soap will work, while others think expensive commercial car washes are always superior to home washing. These assumptions can lead to scratched paint, water damage, and costly repairs.

Understanding the truth behind common car washing myths helps you make informed decisions about your vehicle’s care. Whether you prefer the convenience of a commercial car wash or the control of washing at home, separating fact from fiction ensures your car stays clean, protected, and looking its best for years to come.

a red car is covered in a lot of snow

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Myth 1: Any Soap Works for Washing Your Car

One of the most persistent car washing myths is that household detergents like dish soap or laundry detergent can safely clean your vehicle. This belief stems from the logic that if soap cleans dishes and clothes effectively, it should work just as well on cars.

The reality is that automotive paint requires specialized care. Dish soap is designed to cut through grease and remove food residue, making it far too harsh for your car’s delicate finish. These detergents strip away protective wax coatings and can cause paint to fade or become dull over time. The average car owner using dish soap may not notice immediate damage, but long-term use leads to premature paint deterioration.

Dedicated car wash soaps are formulated with pH-balanced ingredients that clean effectively while preserving your vehicle’s protective coatings. These specialized soaps contain lubricants that help prevent scratching during the washing process and maintain the integrity of wax and sealant layers. Quality car wash soap costs only slightly more than household alternatives but provides significantly better protection for your investment.


Interior Only
starting at
$175
Add $50 for SUV and large vehicles
Full Detail
Interior + Exterior starting at
$295
Add $50 for SUV and large vehicles
Exterior Only
starting at
$175
Add $50 for SUV and large vehicles

When selecting car wash soap, look for products specifically labeled for automotive use. Avoid anything that boasts about being a “degreaser” or “heavy-duty cleaner” unless you’re dealing with specific contamination like road tar or tree sap.

Myth 2: Commercial Car Washes Always Damage Paint

Many car enthusiasts avoid commercial car washes entirely, believing that automated systems inevitably scratch and damage paint. This myth likely originated from experiences with poorly maintained car wash facilities or older brush-style systems that were indeed rough on vehicle surfaces.

Modern commercial car washes have evolved significantly from their predecessors. Today’s touchless systems use high-pressure water and specialized cleaning solutions to remove dirt without physical contact with your vehicle’s surface. Even soft-touch systems now use advanced materials like closed-cell foam and microfiber that are designed to minimize the risk of scratching.

The key to finding a quality commercial car wash lies in research and observation. Look for facilities that maintain their equipment properly, use clean water, and employ trained staff. Many commercial car washes also offer additional services like undercarriage cleaning and tire shine that can be difficult to achieve at home.

However, not all commercial car washes are created equal. Older facilities with worn brushes or inadequate water filtration systems can indeed cause damage. The best approach is to inspect any commercial car wash before using their services, checking for clean equipment and well-maintained facilities.

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white porsche 911 parked near white house

Photo by Erik Mclean on Unsplash

Myth 3: Power Washers Are Too Powerful for Home Car Washing

Power washers have gained a reputation for being too aggressive for car washing, with many vehicle owners fearing they’ll strip paint or force water into areas where it doesn’t belong. This concern has led to an entire generation of car owners avoiding power washers altogether.

When used correctly, power washers are actually excellent tools for car washing. The key lies in understanding proper technique and pressure settings. Most modern power washers allow you to adjust pressure levels, and car washing typically requires only 1,200 to 1,900 PSI—well within the safe range for automotive paint.

The main advantage of power washers is their ability to remove stubborn dirt and grime that hand washing might miss. They’re particularly effective for cleaning wheel wells, undercarriage areas, and other hard-to-reach spots. Power washers also conserve water compared to traditional hose washing, as they use high pressure to clean more efficiently.

To safely use a power washer on your car, maintain a distance of at least 12 inches from the vehicle’s surface, use a wide spray pattern, and avoid directing the stream at delicate areas like mirrors, trim pieces, or convertible tops. Many car washing enthusiasts find that power washers actually provide better results than traditional methods when used properly.

Myth 4: You Need Hot Water to Wash Cars Effectively

The belief that hot water is necessary for effective car washing persists among many vehicle owners. This myth likely stems from household cleaning experiences where hot water does indeed improve cleaning performance for dishes and laundry.

Cold water is actually preferable for most car washing situations. Hot water can cause soap to dry too quickly on your vehicle’s surface, leading to unsightly spots and streaks that are difficult to remove. Additionally, hot water can soften wax and protective coatings, making them more likely to be removed during the washing process.

Cold water provides better control over the cleaning process, allowing you to work at your own pace without worrying about soap drying before you can rinse it off. The mechanical action of washing—scrubbing with a wash mitt or sponge—is more important for removing dirt than water temperature.

There are limited situations where warm water can be beneficial, such as when dealing with heavy grease or road salt in winter conditions. However, for regular maintenance washing, cold water from your garden hose works perfectly well and helps preserve your car’s protective coatings.

Myth 5: More Soap Means Better Cleaning

Many car owners operate under the assumption that using extra soap will result in a cleaner vehicle. This “more is better” mentality leads to over-sudsing, which actually creates more problems than it solves.

Excessive soap creates unnecessary suds that can be difficult to rinse completely, leaving residue on your vehicle’s surface. This residue attracts dirt and can cause streaking or spotting as it dries. Over-sudsing also wastes product and makes the rinsing process longer and more water-intensive.

The correct approach is to use soap according to the manufacturer’s instructions, typically around one ounce per gallon of water in your wash bucket. This ratio provides adequate cleaning power while ensuring easy rinsing with no residue or streaks. Quality car wash soaps are formulated to be effective at recommended concentrations, so additional soap doesn’t improve performance.

Focus on proper washing technique rather than soap quantity. Use the two-bucket method—one bucket with soapy water and another with clean rinse water—to ensure you’re not reapplying dirt to your vehicle’s surface. This method is more effective than doubling your soap concentration.

Myth 6: Washing Cars in Direct Sunlight Helps Them Dry Faster

The logic behind this myth seems sound: sunshine and heat help water evaporate quickly, so washing your car in direct sunlight should speed up the drying process. Unfortunately, this approach creates more problems than it solves.

Washing in direct sunlight causes soap and water to dry too quickly on your vehicle’s surface, creating water spots and soap residue that can be difficult to remove. These spots aren’t just cosmetic issues—they can actually etch into your car’s paint if left untreated, causing permanent damage that requires professional correction.

The heat from direct sunlight also makes the washing process uncomfortable for you and can cause cleaning products to behave unpredictably. Wax and other protectants may not apply evenly in extreme heat, reducing their effectiveness.

The best time to wash your car is during cooler parts of the day, such as early morning or late afternoon, when temperatures are moderate and the sun isn’t directly overhead. If you must wash during the day, find a shaded area like a garage or under a large tree. This controlled environment allows you to work at a comfortable pace and ensures better results.

Myth 7: Frequent Washing Damages Your Car’s Paint

Some vehicle owners believe that washing their car too often will wear away the paint or cause premature aging. This myth may stem from experiences with harsh cleaning products or improper washing techniques that did indeed cause damage over time.

Regular washing, when done correctly, actually protects your vehicle’s paint rather than damaging it. Dirt, salt, bird droppings, tree sap, and other contaminants are the real threats to your car’s finish. These substances can cause permanent staining, etching, or corrosion if left on your vehicle’s surface for extended periods.

The key to safe, frequent washing lies in using proper techniques and quality products. Gentle car wash soap, clean wash mitts, and adequate rinsing protect your paint while removing harmful contaminants. Many automotive experts recommend washing your car every two weeks under normal conditions, or more frequently if you drive in harsh environments.

Professional detailers and car collectors often wash their vehicles weekly or even more frequently without any negative effects. The key is consistency in using proper methods and products. A well-maintained washing routine actually extends your vehicle’s life and preserves its value.

Top Car Wash Product Brands

When it comes to keeping your car in pristine condition, choosing the right car wash products is essential. Below is a list of seven reputable brands known for their high-quality offerings, complete with links to their websites where you can explore and purchase their products:

Meguiar’s

Visit Meguiar’s – A trusted brand in car care, Meguiar’s offers a wide range of products, including car wash soaps, waxes, and detailing sprays.

Chemical Guys

Visit Chemical Guys – Known for their innovative formulas, Chemical Guys provide professional-grade car care products, perfect for both amateurs and enthusiasts.

Armor All

Visit Armor All – With decades of experience, Armor All delivers reliable products such as car shampoos, tire cleaners, and interior care solutions.

Turtle Wax

Visit Turtle Wax – A household favorite, Turtle Wax combines affordability and performance in their range of car wash and detailing products.

Griot’s Garage

Visit Griot’s Garage – Specializing in premium car care items, Griot’s Garage offers everything from car wash solutions to polishing tools.

Adam’s Polishes

Visit Adam’s Polishes – A popular choice among car enthusiasts, Adam’s Polishes is well-regarded for its high-quality exterior and interior car care products.

Mothers

Visit Mothers – Known for their dedication to quality, Mothers offers a full line of car maintenance products, including car wash solutions and specialty cleaners.

These brands provide reliable, high-quality solutions that cater to varying needs and budgets, ensuring your vehicle stays looking its best. Always follow proper usage instructions for optimal results.

love my car wash

Love My Car Car Wash

At Love My Car Car Wash, we pride ourselves on knowing how to properly wash and care for your vehicle. Our team uses state-of-the-art equipment and premium products to ensure your car looks its absolute best without causing any damage to its paint or finish. We follow meticulous techniques to clean every nook and cranny, leaving your car spotless and shining.

Check out our car wash plans today and discover the perfect option to keep your vehicle in pristine condition year-round!

Making Informed Decisions About Your Car Care Routine

Understanding the truth behind these common car washing myths empowers you to make better decisions about your vehicle’s care. Whether you choose to wash at home or visit a commercial car wash, the principles remain the same: use appropriate products, employ proper techniques, and prioritize your vehicle’s long-term protection over short-term convenience.

The time and effort you invest in proper car washing pays dividends in preserved paint, maintained value, and personal satisfaction. Don’t let misconceptions prevent you from taking excellent care of your investment. Research products and techniques, start with quality basics, and remember that consistent, gentle care produces the best results for your vehicle’s appearance and longevity.

Full Detail
Interior + Exterior starting at
$295
Add $50 for SUV and large vehicles
Interior Only
starting at
$175
Add $50 for SUV and large vehicles
Exterior Only
starting at
$175
Add $50 for SUV and large vehicles

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