I used it 1:1, worked great! Decided to cut it down to 2:1, worked great! 3:1, still clings amazingly, and cleans well. 4:1, you took too much, man. At 4:1 it's similar to sticky wheel gel and doesn't cling super well. I believe 3:1 is the money spot for Diablo.
good to know i also got a gallon of sticky wheel gel just for the regular maintenance washes where i dont want to waste diablos power
