Diesels will always smoke to a degree with current technology. Diesels always burn both rich and lean at the same time because they have diffusion burning not pre-mixed. The cooler fuel that is farther from the diffusion front and towards the end of the cycle is rich and has less dwell time to break down. Some of this stays as longer carbon chains of "stuff" and leaves the exhaust uncombusted. This is a waste of fuel - bad for your wallet and bad for the environment/your lungs.
As you increase the hp output per cubic inch on a diesel (i.e. the amount of fuel your are trying to burn in that space in a given time) the efficiency falls off pretty quick with more fuel heading out the exhaust and more heat into the cylinder walls. It actually falls down to near the efficiency of gas engines at high loads.
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Today's Featured Article - Show Coverage: Argyle and Mt. Pleasant Labor Day Weekend Shows - by Cindy Ladage. The last fling before summer fades into fall and we get busy in the fields are the annual Labor Day tractor shows. Beginning on September 5th and running through the 7th, the Argyle Antique Gas and Engine Show is held at the Argyle State Park. Located in West Central Illinois, the pine forest was the setting for the opening of the 22nd show. This year we decided to try to sell a few tractor parts, literature and wrenches to offset my husband's buying sprees. Saturday
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