I carry emergency canola oil. For me it's just the fact that I'm not sure what I would want to store the diesel in. One of the leaky EPA fuel cans? Or a non-regulation jug that someone might throw a fit over (you never know these days)? It's just easier to have a bottle of something I know isn't going to leak and if it does, no big.

Remember, fresh cooking oil is NOT the same as WVO littered with chicken junk and who knows what.

-Rog