Best way to wash this off?

[Cliotoby]

I dont use snowfoam because its a waste of money. Only thing its good for is washing conservatory and caravans.

I use G101 on the paintwork, a light mix with hot water in a spray bottle makes it a degreaser as well. Spray that on and wash ot off and itll remove just about all the dirt if the car is protected properly.

 

[MatthewR]

Is G101 any good through a snow foam gun?

 

[Don]

Is G101 any good through a snow foam gun?

Don't use proper snow foam attachment...just use the bottles that come with Karcher and Nilfisk and dilute as appropriate to ensure you get best mixture dependant on how your car is...but it will remove any wax on the car as pretty potent.