I wash this same account for Ford Moving in Texas. Local trucks do bug up too and you’re priced very low. I upstream my soap with heat and cold rinse them now. I haven’t brushed them since I started them last Thanksgiving. I clear 6 a hour even with hitting the wheel wells, frames, lift gates, air tanks and the inside rear dual tire. Who parks with them on the line? You’ll have to rinse those guys off which slows you down. It takes me two nights by myself and about a 100 gallons of soap along with about 3k gallons of water. My window to get them all is from about 8:30p to 5:30a.
The drivers are very young and inexperienced so they will mostly be crooked crowding the truck next to it making it tight as hell which will really wear on you. I had to make up very short guns for them. More often than not they get off road and mud them up, the pic below is very common and no you can’t charge extra for that nor can you charge for all the gum they spit on the tank steps and stickers they stick all over the place. My invoices to them are held up constantly so you better be okay floating them every single time you invoice them while they get it together for you.