Washing the car

[pigeongirl]

Does washing up liquid really damage car paintwork or is it just a myth created by people who sell special car shampoos?

[Catso]

Well, it'll do a reasonable job of removing your previous wax!

Washup does contain very aggressive detergents, to get grease off pans. In general terms, it is stronger than you need for a car wash, so why use it? Car shampoo isn't that expensive.

[ugly_bob]

and don't get it on your windscreen!!
It leaves a film that will cause 'starring' from headlights, streetlights and the sun, making it difficult to see.

[dilligaf]

Washing up liquids contain salts which can damage your cars paintwork. Car shampoos don't.

[dilligaf]

Also if you put washing up liquid in your screen washer bottle the jets will block up.