Hi Russ! Well, Ash won't like this, but as long as it is local where not a lot of "windshield" time is involved, probably around $15-$20, dependent on whether I'm given the 20 or 40 units to wash. Unfortunately, aggressive competition forces a person to lower his prices. However, when my Dad was running his own mobile truck wash in a small community(pop. 1600), he was getting around $30 for a job like that. A little better average, but he usually had to drive farther than we do to get business. Ther is never a one-price-fits-all for our industry, and unfortunately that is the one downfall of the "national" companies like fleetwash with the flat rate pricing. Even with our contantly striving for efficiency and wash speed, we still can't wash DHL delivery vans for $2 each and make a profit, which is what fleetwash wanted us to wash them for. Honestly, I don't think I could rinse them at that rate!