ya well thanks to my boys i'm down to about a tank left of this old stuff, they knocked the can over in my front yard.. it was kinda interesting watching it burn when i set it on fire tho! i thought i had mixed it right, but i'll make sure and do it right this time.. last time i just kinda dumped a little oil in a gallon jug.. about what i thought i normally did. i use old oil i get out of cars and stuff, from a 55 gal barrel drum i dump old oil in..