I used the autobrite foam lance and magifoam for the first time yesterday and OMG it's so much better than the standard Karcher one! I put about 2" magifoam in the bottom of the autobrite bottle (will use 1" next time) and topped up with warm water. The consistency of the foam ranged from watery to whipped cream(!!) with the adjustable settings, so I used it pretty much like thick snow. The dwell time was brilliant - tbh I think it would still be there if I hadn't washed it off
, so maybe I had it a bit thick. Even though it went on pretty thick it washed off very easily with the pressure washer - did cause a bit of a bubble mountain in the drain though.
The results were impressive - about 2 months of winter driving since the last proper wash, by the time I rinsed though the sun was down so I didn't move on to the 2B wash and mostly the cars are reasonably clean as a result. There's obviously a few streaks but not bad for a quick tidy up, I was particularly impressed with how well it did on the wheels. I was putting the cars into service this morning and didn't want them to wash the dirt into it, as they don't pre-wash
not ideal but was pressed for time.
Highly recommend the Autobrite lance to anyone umming and erring over whether to buy it.