I have been using tfr type products in steam cleaners and pressure washers for many years, don’t think I have ever found one that doesn’t need the intervention of a sponge to remove grime off paint.
Bob
Same here, I worked for a company that supplied the equipment & detergent. Even with the strongest stuff we sold you still needed a sponge to remove traffic film but the strong stuff is hard on paintwork due to the high levels of caustic in it!