Used ONR on my black camaro for the first time last night. Everything went well and I was impressed with the product. My process was:
3 gallons warm water & 1.5 oz ONR with grit guard in my wash bucket. 4 gallons warm water with grit guard in my rinse bucket. Pretreated panel with ONR 1:16 ratio in spray bottle, first pass with grout sponge, second pass with wet plush mf towel. Drying pass with waffle weave drying towel, final pass with plush towel and detail spray. Worked great!