While shopping for new car wash soap, I often come across descriptions or details of the products with "suds" in it. Mostly because people are used to associate suds with cleaning power. Now that's proven to be false. There's no relationship between suds and real cleaning power. That begs the question: what is a good car wash soap?
Personally, I learned it the hard way by putting regular detergent into HE washing machine and the suds was ..... everywhere (inside and outside of the washing machine). The clean up wasn't fun at all. Then I Googled and found that suds should not be an indicator for cleaning power and there are detergent that are designed for HE washing machines (less suds). Does suds actually provide positive properties for a normal car wash? Perhaps suds stay on the car longer? If the car is covered with suds, isn’t it hard to tell which part of the car has been thoroughly cleaned?
Any personal experiences with a good car wash detergent?
*Edit:
I guess some foam will help lubricating & lifting dirt . However, I still like to know people's recommendation on a good car wash.