Since applying the PP365 almost 3 weeks ago and having maintained the Camaro 4-5 times with the D115, I think I stumbled across a winning combination. Granted, I haven't had much inclement weather to test the durability 'under stress' of the PP365/D115, but I can say that dust, bird poo, tree sap and high-speed bug suicides are MUCH easier to clean off.
I've "soap & water" washed the car once in this time period and the soapy water beaded up almost as well as the rinse water, and the car shed the rinse water in sheets/beads and did it very quickly. I'm now using distilled water to make the D115 mix ... I only found Dist. water with added fluoride (for baby formula) and other dist. water with added minerals -for flavor again for baby formula, so I hope it is OK. So far so good though.
I've "soap & water" washed the car once in this time period and the soapy water beaded up almost as well as the rinse water, and the car shed the rinse water in sheets/beads and did it very quickly. I'm now using distilled water to make the D115 mix ... I only found Dist. water with added fluoride (for baby formula) and other dist. water with added minerals -for flavor again for baby formula, so I hope it is OK. So far so good though.