Buzzie8
What is your soap cost (presoak only) per car with the current price increase you mentioned?
Mine is 54 cents per car using KR's Inbay Presoak. I dialed up the usage to do a better job on the salt brine on the cars and thought I was using too much.
Can't remember exactly in high .60's though .67 .68 I think. That was washing my truck though. Uses 11 oz of presoak from alkaline tank titrated at in high 20's (28,29 drops). I know titration is high but it gets good results.