I used it in my diesel VW, and use it now in my BMW diesel 335d. I plan on using it in the new LS and Yanmar. With low sulfur diesel I would run it or use a small amount of biodiesel in the mix, less then 5%. If you have EGR in a new tractor you should use it, the EGR value will cake without it. The tractor guys are going to have to come up to speed on diesel emission systems soon because there coming to the tractors. The new high pressure diesels are coming to the tractor industry and all the emission systems in high pressure diesel cars are coming to the tractor industry. The fuel pump you know and love is going away.
HS