Best product I use for the actual washing of the car is Meguiars Gold Class Shampoo +. I usually buy products online but with shampoo I prefer something readily available from a shop as it often runs out before you realise

"Shampoo +" is a shampoo and conditioner and has great lubricity which in turn helps not to induce marring. I also find you get a lot of suds from the gold class. To me, its a great all rounder and isnt too expensive
