I am compiling a list of oil level sensors for Diesel engines and was wondering if anyone out there knows of some reputable companies that offer oil level sensors.

Groeneveld (http://www.groeneveldusa.com/home.html) has a automatic level system that senses the level and if low will add. I also know that Davco (www.davcotec.com) has a system which they use on stationary applications.

Dean.

And then there is the all time favorite!
http://www.murphyswitch.com/catalog.htm
Murphy Switch!

You may go through www.reliabilitydirect.com to find out the oil sensors.

I've seen a pretty good list of level sensor manufacturers on www.autosportsensors.com

Try http://www.fluidswitch.com/

Also try http://www.binmaster.com/