So it only affects older rubber lines? Are the newer rubber lines immune to the problem, or do the esters only have an impact on aged rubber?

I ask 'cause I've recently replaced the rubber lines back by the tank, and I think the lines in the engine compartment were replaced recently...which, theoretically, means that I could run straight biodiesel right now.

I like the WVO idea, but the initial cost seems pretty high...so, if i can get my hands on a 55 gallon drum, I'm thinking long and hard about making my own biodiesel, if it's feasible...

Diesel just jumped to $1.87 here, and I think we're only seeing the beginning... Even if we aren't, I'm getting real tired of giving OPEC my $$...