On September 20, 2005 Frank Swygert wrote: > There are summer and winter blends of diesel. I was under the impression that the veggie oil needed warming all the time because all the kits have some type of warming scheme. Below a certain temp makes more sense though. > > I remember that from Idaho, when I had a diesel car (Chevette -- had the 1.6L Isuzu diesel in it). The stations would change over to "winter blend" in the fall. The fuel would gell below a certain temp, and one day a sudden cold front moved in. I went to work, and almost didn't get home! Car started, ran for about 100 yards, and shut off. Fuel was just starting to gell, so it started back up but didn't run like it should. I went and fueled up, and hte 1/2 tank of winter blend fixed the problem. I'd been warned about summer/winter blends or wouldn't have recognized it. > > On September 19, 2005 andrew hay wrote: > > > that may be true if you burn straight veg oil, but if you > > transesterify the triglyceride with alcohol you wind up with lighter > > molecules and glycerin as a byproduct. that's biodiesel, and it needs > > heating or blending [b20 - 20% bio] only below about freezing only > > because it has a higher 'wax point' than petrodiesel [-9c for canola > > bio, -2c for soy bio]. i understand truckers that haul north-south in > > winter often get caught by this too, as you can get a cheaper heavier > > petro in the south that waxes up in cold weather. when that happens, > > the truck stops until the fuel thaws. > > > > having the heater and maybe tank insulation makes you immune to that, > > as long as the heat source is running... > > ________________________________________________________________________ > > Andrew Hay the genius nature > > internet rambler is to see what all have seen > > > > adh@xxxxxxxxxxxxxxxxx and think what none thought > > > ============================================================= > Posted by wixList Archiver -- http://www.amxfiles.com/wixlist After getting out of the Navy after 4 years in late 1969 (I was in Avation & worked the flight deck and was a plane captain and worked ground support) I went to work for a company that did all these things at a local airport. We had an additive if my memory serves me right called Prist that was addded to the jet fuel used on some corperate jets to keep the fuel from gelling. It was not used on all of them so some sort of a fuel cell heater may have been used on some of them to keep the fuel from gelling. "Doc" ============================================================= Posted by wixList Archiver -- http://www.amxfiles.com/wixlist