Having not washed the car since before Christmas, I decided to get out there and sort it out. Also I had Valet Pro Citrus Pre Wash to try out. So, sprayed car with VP Citrus Pre-wash diluted at 1-8 with water left to dwell for 5 mins, washed with noodle mitt and Chemical Guys Glossworkz Shampoo. Very impressed with the VP Citrus Pre-wash. I'll be using this instead of snow foam from now on as it did all the things I hoped snow foam would but never delivered on. After a 5 mins dwell most of the dirt washed off with the pressure washer. Afters. Unfortunately a run in with white van man before Christmas has left me with this to get fixed. Thanks for looking.