At $4.60 a gallon, I will be forced to work overtime to even make it to work. I'm looking into making one of these electrolysis setups. I also would like to run propane because I've got a pretty good hookup on that (cheap cheap). I've also researched biodiesel and have a few things lined up for a homemade kit. 5 percent seems like a pretty safe amount of waste engine oil to add (filtered of course). My question is, will all of this combust properly, or will the mix create some kind of chemical reaction? I've read that hydrogen can raise egt's. I'm also looking into buying the Quadzilla Adrenaline. It has a pyrometer built in. If it raises the egt's too high, I'll go with a 4 inch exhaust, but if that's not enough, what about throwing water/methanol into the mix? I know that's a lot of fuel, but I plan on getting a cfm+ and afe filter. It will be a pretty penny, but if I have to take some money out of the bank to save money, thats what I'll have to do. The extra power will just be an added bonus.