Since i get most of my vehicles used, I will rebuild them once right after I get them and replace any worn parts and make sure I take a LOT of time to do it right. Then I will leave it as is for a long time, only blowing it off with compressed air after each run and maybe occasionlly refilling shock and diff oils. Though, when i brake a part and rplace/repair I clean that area too. On my race vehicles that's another story though. They look and perform like new every weekend!
R.I.P. Muggy, Rustler, VXL Slash
EFlite Blade MSR Heli (Slightly modded)
1/16 BL E-revo
8-t 2.0, OS Vspec with Speed conrod
Carbon Fiber Revo 3.3 Coversion Madness!