I you want it for car cleaning stand well back when you first start or you will scratch the paint with all the road grime.

Reading about the power of these Karcher machines makes me glad I've only got a cheapy endorsed by Eddy Irvine and bought from Woolies before they went bust! Mine may have a wonky wheel now but it still works well for blasting the bird mess off the deck, making my plastic guttering white again and just occasionally washing the car.... personally wouldn't be without one.

When these products are advertised, it always seems to be a case of power washing a vehicle on a nice sunny afternoon, using all the various gizmo's also advertised, and surprise surprise you then have a showroom condition vehicle in front of you. What I would suggest, is that you go to one of the regular car 'hand wash' places, and see what the staff do and use there.

I have a number of power washers, from the once available £49.99 B&Q Special to the more powerful petrol engined unit. Generally, if the item as a 'detergent' dispenser provided, then I might use it. But a good old sleeves rolled-up job takes some beating!.

"i was wondering what brush attachment do you use on the vehicles?"

I don't, they usually end up microscopically scratching the surface.

I simply power wash to loosen the dirt and complete the job by hand with a sponge or chamois. Still possible to get scratches but less likely.