Uhhh...are you sure Elemist?
I've been having problems with my RX65 also, so I thought I'd take your advice..
I just opened up my Bel RX65, and didnt notice anywhere to put any oil...I noticed this little thing that looked like a coil of copper wire, so I put some light oil in the middle of it...sorta like a "resevoir" I thought. I didnt put engine oil, thought it might be a little bit too hardcore for something as small as a radar detector.
Doesnt seem to be working at all now!!
Rotating the buttons is easy, but what other fluids should I be putting in it????
Anyone??