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144 Posts
You're either blind, lying, or only wash tanks.For the last 46 years of vehicle washing I can honestly say I have NEVER used soap!
Just a bucket and good sponge, nice cotton bath towels to dry! Never had swirl marks or scratches!
This is not entirely true. A soap for dishes is for...well...dishes. Baked on finish that has forks being scraped across it all of the time.To spend a lot of money on a liquid soap that says CAR SOAP and looks/smells nice is a waste of money. To me soap is soap.
For a car the soap doesn't actually "clean". What is important with the soap for a car's finish is the lubricity. Dirt and grit scratch and micromar paint and when they are scrubbed across a car's finish (regardless of what anyone says) with inferior instruments then they are only going to damage your finish even worse.
When washing a car your wash mitt is what actually removes the dirt...not your soap. The soap should lubricate and suspend the dirt and grit once you remove it from the surface of your finish, allowing the contaminants to simply glide off the car when you rinse.
Also, when using whatever brand car wash liquid you prefer be certain to follow the recommended measured amount for the proper dilution. If you mix too strong then you're going to strip your last step product. If stripping your LSP is your goal to apply a fresh coat then that's fine...but if you're just doing a maintenance wash in between details then you want a soap that has good lubricity but isn't too aggressive when diluted properly.
Edit: And for the record...right now I use Meguiar's Gold Class simply because it's slimy and Wal-Mart has it on the cheap.