Same here, but I always woner if that's enough. How many of you guys actually get under your vehicle with a pressure washer, or do the under-belly cleaning yourselves? I would love to hear some best practices from this group. I have to admit, I don't do it as often as I should... usually just rely on the commercial car wash "under carriage wash" option, but never know if that actually does much.
Despite doing that as often as I can, I can STILL see corrosion under my Tacoma and even under my old BMW. Funny, but my old BMW was a Florida car that I purchased through CarMax, and it had ZERO corrosion when I bought it... now, there are visible signs in a few spots even with meticulous cleaning and never driving it in the snow unless absolutely necessary.
I'm not as diligent about this as I should be. One of my concerns with using really high pressure is driving salt/ water into areas you shouldn't (connectors, electronics....). Not to imply it's OK for mechanical stuff.
Olde-tyme guys here would use a lawn sprinkler (oscillating bar type), and move it around under the car. That seems like a safer pressure, to me. I guy I know was cleaning up a project car recently, said he found it took HOT water to dissolve the baked on brine crystals.
Rgds, D.