Just got back into town from stage coach, co. twice over the past week on one tank of petro. Up and down windy mountain road above 7k ft, two snow storms, muddy passes, with 1 passenger, 1 pitbull, and lots of tools. Got 377 miles on 24.48 gal(Had to add out of gas can, I added this into equation) of gas and a few onces of vinegar and distilled water. this comes to my best calculations at 15.4 Mpg. I was getting about 10-11 in similar situation, but it ran like **** without the hho.
I just retarded the timing a couple of degrees from the 10 advance I was running and adjusted the idle a bit. I still need to desmog since my system is defunct anyway and secure a few vacuum leaks. The fj is a work in progress, but I've been pleased with the overall results with the hho so far
I'll have some pics as soon as I can borrow a digi cam.
82 fj60, stock minus egr leak and custom pitbull chewed sheep covers, hho injected