The EPA mandated particulate filters are nothing but trouble. All diesel pickup trucks have this mess starting in 2008. I have an '08 F350, and from the studies I've read, the system uses 2 gallons of extra fuel for each cleaning (regen). Regen occurs about every 250 miles under normal driving, and more often under heavy load. The DPF is also a restriction in the exhaust, which reduces power and milage. During the regen cycle, additional fuel is injected during the exhaust stroke, which causes cylinder wall wash down, and some fuel gets past the rings, diluting the oil. My truck would make about two quarts of oil between changes. This will reduce engine life as well as the poor milage. About two months ago I removed all this crap- the DPF and the DOC (catalitic converter) and tuned the computer to shut off the regen process. I now get 4 mpg better, in addition to better power and drivability. It seems like a different truck. On a recent trip, I averaged 22.5 mpg (driving easy), truck is a crew cab 4x4 dually weighing 9000 lbs. The real aggrevating thing is that this government mandated mess cost me about $4000 extra when I bought the truck, and another $850 to get rid of it, in order to make the truck what I consider useable. Besides, the particulate filter does just what it says- filters PARTICULATES of carbon (soot) which is heavier than air, and simply falls to the ground if not filtered out. The greenies are happy cause they don't see any smoke, but it does nothing for air quality. The whole idea, in my opinion, was dreamed up by people who have no understanding of how a diesel operates, but are sure diesel smoke is a terrible thing. I wonder what all comes out of the exhaust pipe during the regen process? The next step is this urea injection, which is said to reduce the frequency of regens, but then you gotta buy that stuff and fill a separate tank, they say at every oil change. Since removing the DPF, my truck rarely puts out any smoke- just a very fine puff if I stomp on it hard, not enough to kill any trees or libs. Love the truck now, but if I had to do it over, I may not have traded for it, knowing what I know now.
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Today's Featured Article - Identifying Tractor Smells - by Curtis Von Fange. We are continuing our series on learning to talk the language of our tractor. Since we can’t actually talk to our tractors, though some of the older sect of farmers might disagree, we use our five physical senses to observe and construe what our iron age friends are trying to tell us. We have already talked about some of the colors the unit might leave as clues to its well-being. Now we are going to use our noses to diagnose particular smells. ELECTRICAL SMELLS
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