Here is a pretty neat idea that is just over the horizon. A diesel engine
oil condition sensor. It measures soot, viscocity, and fuel dilution.
http://delphi.com/pdf/e/int_oil_cond.pdf

I ran into this while playing with an idea for refrigerated cockpit drink
holders. But that's another story. :-)

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com