Hi Natasha,
There are quite a few pressure washers that will do the tasks required. Are you looking to add this to your truck, mobile in the yard, or mounted in the shop? After that question is answered, it is best to get a realistic estimate of how much usage you will have on the machine. Will it be used to clean 10 units a day, or 60 units?
It is important to make sure the seals on the washer and wand/spray nozzle have a high heat and chemical rating. Otherwise, it may be a wise idea to pair up with a local service provider who can change these out every 6 months.
Hope this helps!
Matt