I use CT18 remove radio tray and engine spray entire car let sit for 10min then hose down with water, Then straight away blow down most of the water with air from the compressor. If sunny then let it sit out side and dry off then totally strip down the buggy and wipe and inspect every part then reassemble and inspect.
Blow dust out of radio box i then plug and listen to servos. bearings almost every 3-4th clean i remove shields and clean and oil ready for next time.