I bought meguiars d115 and diluted it 12:1 worked really well for me and i was sitting there thinking that its basically a wash and wax suspended in water, so one day i mixed d114 and d156 together at 1:1:128 ratio with water shook really well and it performed the same if not better than the d115, I'm not sure about if I'm taking away the effectiveness of the 156 as 114 is a cleaner and it mite be affecting the ablity of d156 to do its job but by cost you get 128 gallons of waterless wash and wax for around 70 dollars