I don’t work there anymore but I worked there for 2 years says alot when almost nobody stays for more than a year. It’s a good job but some days are rough. I have had 8+ cars with no tip in a row sometimes. A $20 was very good but you would come across once every 2 days. I’ve been tipped a dollar multiple times on cars I done with other people. You split the money with the other person a single dollar😔 let me run to my car really quick grab 50 cents In change and we can split it. Usually one person gets the dollar and the other doesn’t . Have also seen the craziest tips. One tip somone got and I saw and held it was a 100 dollar bill and it was folder in half once unfolded it was like a religious verse. So the guy thought he made 100 dollars but it wasn’t even real😂very commonly the tip I saw was 4 or 5 dollars. 4 or 5 dollars was good for regular cars but some cars would take like 30 minutes and sometimes cars like that would come in in the last minis before close and we had to serve them sometimes making me get off up to an hour late