When I get home from college in a month, I have two major manual-labor tasks that I need to get done. The first is to fix my car, and the second is to clean approximately 2,000 hubcaps (I collect and sell hubcaps, and I’m a little backlogged!). This question concerns the second item. I’m planning to rent some kind of a pressure washer to do this job, but I know from experience that brake dust is very tough to remove, and pressurized water alone probably won’t do the job. I’ve always scrubbed the hubcaps by hand with an SOS pad in the past, but 2,000 is too many to do one at a time, hence the need for a pressure washer. So, my questions are:
Does anyone have experience with pressure washers? Is the type that heats the water better than the regular type? Are decent pressure washers even available to the public at those rent-a-power-tool places?
What kinds of commercially available cleaners are the strongest? It would be a bonus if they were also not so toxic as to kill the lawn, because I will be doing this in my driveway.
Any advice on how best to go about this would be appreciated.