Some free diesel fuel?

[will n]

I was talking to a buddy of mine over the weekend who is a marine engineer. We were talking about diesel's and their ability to run off of just about anything.

I brought up the idea of having an extra 5-10 gallon tank, with all stainless fuel lines, extra filters, and a valve to switch between this tank and the normal 40 octane diesel.

In this 5-10 gallon tank would be old engine oil, even cooking greases as long as it isnt something that would solidify, and anything else that will burn. These would of course be extremely well filtered before even being put in the tank.

He said that this work work fine as long as you start up your diesel on regular diesel fuel, let it get warm, then switch over, and then switch back to regular diesel 10 minutes before shutting it down.

Maybe this is not an original idea, but I sure like it and it is an easy way of getting rid of your old oil.

Has anyone done this or heard of it being done? And if so what do you have set up to make it work?

Will