I may catch some flack for this, but I've NEVER (36yrs) hose washed my Pantera! (I don't want all those nooks/crannies/crevices full of water)
I use a duster/moistened microfiber towels/wax on/wax off.
Mother's line of products are great, and as Husker suggested, try their clay bar for an excellent paint surface re-finish......
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