The 2007 and 2008 diesels are designed to use the new ultra-low sulfur diesel fuel and if you put the regular old diesel fuel in them it will royally screw them up. You can use the new fuel in older diesel engines with no problem, and in fact, it’s probably better for them. It just puts out less black smoke and particulates than the old kind. I’m going to have to be careful and make sure I get the right kind because not all the stations have switched over yet.
Oh man, now how will I be able to smoke out the tailgaters! I pull out on the road and they speed up, so I just floor it and let them suck up all that black smoke in their AC. Sure makes them back off in a hurry. :)