I own a mobile detailing business and I have no experience using truck washes. What I do know from my customers is that the quality below average. I also know that is most of them use chemicals on the harsher side of the soap spectrum. They must use stronger chemicals like detergents and acids to produce results while saving on labor rates. I also have no idea of how they maintain their brushes. But I would assume that they are not very concerned with switching out the stiff bristle brushes they use on extremely dirty tractors for softer cleaner ones specific for RVs and trailers. If you need a quick wash every once in a while I guess there is no harm in intermittent washes from a truck wash. Except for the potential of micro scratches and contamination from brushes. If you are looking at maintaining your RV or trailer the correct way you should invest in a quality and I stress quality mobile detail-er. A quality mobile detail-er knows the cost of correction work like the damage harsh chemicals cause (oxidation), or the damage from using the wrong brushes (micro scratches). We also know that waxes/paint sealants should be applied before your long trip to protect from road grim, bugs, environmental fall out, etc. Most RV-ers will wax in-between trips and by the time they go on their next trip the wax has already broke down and all the damaging effects mentioned above are much harder to remove during a basic wash which leads to scrubbing harder, using harsher chemicals, or getting into costly detail work(paint decontamination, polishing). Investing in a quality detail-er may cost a little more per service, but my customers believe the savings in maintaining the value in their RV or trailer is worth it. I personally give discounts to my customers who maintain their vehicles regularly because it drastically increases the quality, while reducing the time and cost spent compared to a vehicle that is maintained only once or twice a year. If you ever have any questions about maintaining your RV or trailer feel free to post on our forum.
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