I'm interested to hear the answer here, too, since I've always heard that Dawn dish soap (in particular) is good for car-washing. I could see where Lava soap (the kind my mom uses for washing her hands in the kitchen) would be a problem, but dishwashing soap shouldn't be.
The explanation I was given was that the grease fighter in dish soap is bad for the finish on your paint. I was told it will dull the paint over time. Maybe they didn't know what they were talking about
Dish Soap is made for removing things like hard grease and other things off the pots and pans. It will remove the coating of wax or sealant you may have on your vehicle. Some say it will hurt the clear coat to. Either way, removing the wax is going to hurt the paint. The only time I've seen recommended is when people want to repaint their vehicles.
Interesting! I never realized that would be an issue. It's good to know that I should avoid it in the future. What inexpensive soaps are good for using instead?
Go to the auto parts store and pick up a cheap brand. I'm honestly having a brain fart and cannot remember what brand I use. But an auto parts store will have something better then dish soap.
I've heard of people using Borax, but I will not try it.
I'm trying to remember the harmful stuff in soap, I think it is alkali and phosphate. So if you have to use different soap check to see if that is in the soap.
Yes, Dawn will most definitely strip the wax off the paint. What I've always used is a good, mild liquid handwashing soap (the clear kind, not the orange "antibacterial" kind). I figure if it's good enough for your hands, it should be good enough for the paint. And I've had no trouble with it stripping the wax or messing up the clearcoat.
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washing cars with kitchen soap
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