can you use mrs meyers on car exterior

Question

London · Accepted Answer

Using Mrs. Meyer's Clean Day products on your car's exterior paint is not recommended. While these soaps are excellent for household surfaces like countertops and floors, their formulation is not compatible with the delicate clear coat that protects your car's paint. The primary risk is that these cleaners can be too harsh, stripping away protective waxes and sealants and potentially causing dullness or even long-term damage to the clear coat. For safe and effective cleaning, you should always use car wash soap specifically designed for automotive finishes.

Automotive soap is pH-balanced to be gentle on clear coats while still effectively lifting dirt. It also contains lubricating agents that help prevent the dirt you're washing off from scratching the paint surface. In contrast, household cleaners like Mrs. Meyer's may contain degreasers, essential oils, or abrasives that are fine for a sink but are too aggressive for your car's exterior.

The potential consequences aren't worth the risk. You might save a few dollars on a bottle of soap, but the cost of a professional paint correction to fix swirl marks and etching caused by an improper cleaner is significantly higher. Sticking with products designed for the job ensures your vehicle's finish stays glossy and protected for years to come.

Cleaning Product	Primary Use	pH Balance	Effect on Car Wax/Sealant	Risk of Scratching
Car Wash Soap	Automotive Paint	Neutral (Safe)	Minimal to None	Very Low (High Lubricity)
Mrs. Meyer's	Household Surfaces	Often Alkaline	Strips Protection	Moderate to High
Dish Soap (e.g., Dawn)	Cutting Grease	Highly Alkaline	Completely Strips	High
Waterless Wash	Quick Detail Spray	Neutral (Safe)	Safe for most	Low (with proper technique)

DelAndrew · Answer

I tried it once on my SUV, thinking the "all-natural" label meant it was safe. Big mistake. It left a weird, streaky film that was a nightmare to wipe off. It didn't feel slick like after a real car wash; it felt almost sticky. I had to re-wash the whole thing with proper car soap to get it right. Stick to the stuff made for cars. It's just not worth the hassle or the risk to your paint.

GenevieveLynn · Answer

From a chemical standpoint, the issue is formulation. Automotive clear coats require a specific, neutral pH to maintain integrity. Many household cleaners, including brands like Mrs. Meyer's, are alkaline to tackle grease and grime. This alkalinity can degrade the wax layer and, over time, microscopically etch the clear coat, leading to permanent dullness. The lubricity is also insufficient, increasing the chance of instilling swirl marks during the wash.

RebeccaDella · Answer

Think of it like this: you wouldn't use laundry detergent to wash your hair, right? Your car's paint is just as specialized. Car soap is engineered to clean without harming the finish. Using a kitchen or bathroom cleaner is a gamble. It might seem fine once, but you're slowly compromising the protective layers that keep your car looking new. Protect your investment with the right tools for the job.

LaFernando · Answer

I detail cars on the side, and this is a common question. The short answer is no. I've seen cars come in with hazy paint from using these kinds of products. They often leave residues that attract more dirt and can stain trim. A gallon of concentrated car wash soap is inexpensive and lasts forever. It’s the cheapest insurance you can buy for your car’s appearance. Why risk a thousand-dollar paint job to save three dollars on soap?