Powerwash with a good detergent
We tried a friend's power washer last year and were not happy...enough
pressure to clean was enough pressure to remove paint :-(

and rinse and then proper lube
afterwards.
Yes, lube is important, lubing after a washing or flying through hard
rain you can see water come out when adding grease

Wipe the exposed chromed parts of the struts down with a
light film of oil.
At least we don't have to bother with that (Mooney)