Pressure wash? Good God: no. We see the disastrous consequences of this treatment several times a month at the shop. Grease is blown out of every bearing: headsets, hubs, BB etc. Derailleurs are still with corrosion, and after a few months with no grease, bearings are stiff, notchy and dead.

Cleaning a bike? Damp rag with soapy water. Focus your cleaning and maintenance time less on the outside of the bike and more on the critical inside parts.