I got rid of thr CAT and DPF shortly after I bought my '08 new. Best money I ever spent. 4 mpg increase across the board, and just runs better. The regen cycle is normally triggered by exhaust pressure due to the DPF getting full. When you eliminate the DPF, the backpressure is gone, but the computer will eventually trigger the regen cycle anyway after a certain amount of time, and will never shut off since there is no heat build up with the DPF missing. In other words, you must have a programmer so the regen cycle is deleted. Also, since the regen cycle injects extra fuel into the exhaust stroke, some fuel will get past the rings. If your truck isn't using any oil, the oil level will increse between oil changes. I would rather not have fuel-diluted oil in the crankcase. Getting rid of the DPF will get you better fuel milage and make the engine last longer.
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Today's Featured Article - Harvestin Corn in Southern Wisconsin: The Early Years - by Pat Browning. In this area of Wisconsin, most crops are raised to support livestock production or dairy herds in various forms. Corn products were harvested for grain, and for ensilage (we always just called it 'silage'). Silo Filling Time On dairy farms back in the 30's and into the first half of the 40's, making of corn silage was done with horses pulling a corn binder producing tied bundles of fresh, sweet-smelling corn plants, nice green leaves with ear; the
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