Same here... or so I thought.
Went out in her yesterday and it rained
RainX did wonders! Plus even though I was driving down country lanes full of dirt... when I got back, she SHILL looked clean!
Ian must have put some kind of anti-dirt surface on the car!
Ha ha - you'll find that in the first week or so dirt or rain just comes straight off. Hence the car will stay cleaner longer. I've also noticed if you machine polish the car, it somehow seems to form a better bond with the bodywork, which helps the wax work longer.
Glad you liked the RainX - it's good stuff eh. Best noticed on the motorway, you no longer need the wipers when it rains. I love the stuff.