Yes, we do not get the same dirt as other places. We do get though many cars that are parked outside and not moving for 7 to 8 months. Our winter residents do this and the cars are covered in dirt, pollen, and bird poop. I also get cars driven 1,000 miles from up north covered in bugs. And I get all of them clean. My goal is 100% satisfaction. If you are getting 98-99% clean you are doing better than most. I do not mind spending a buck on soap to do this. I get $15.00 for my two top washes, and 60-70% are those. So I net at least 13 bucks. That is still a 87 % margin. To me that’s worth it. And to those of you that only have one soap instead of a two step, most can be modified to add another. If your Plc has an output for this it might cost a grand to do it. If the pic doesn’t have that output the manufacturer most likely has a program to do it.