Recently I have been running Off Road Fuel from a local station and I started having fuel problems in my John Deere 5425. A trip to the shop later and we determined that there was algae in the tank and the tank had to be cleaned completely. I wrote that off as negligence on my part since the tractor sat up a lot this winter. On another note, I was running our Cat bulldozer two days ago and began to notice some of the same symptoms that the tractor showed. I have determined that I will not use fuel from that station any more but my question is would I have any problems using on road fuel? I might start using it just because I can go to a local truckstop that gets fresh fuel all the time. I know it would cost more but I would rather spend more on fuel than in mechanic bills on that dozer. Any help would be appreciated. On another note, does anyone know of a good additive that I could put in the dozer's tank to try to get rid of the algae?