Firestarter using Sawdust and Vegetable Oil

I originally saw a similar recipe on YouTube from a fellow using kerosene and sawdust. Kerosene seems more dangerous than vegetable oil and since we had some used oil anyway, I decided to try that. It seems to work very well. The biggest change I would make is to have the pump of firestarter be more flat with less smooth edges. That would make more surface area for the fire to catch on to. This burned for well over 20 minutes!