I don't follow your logic on how diesel has to beat gasoline figuers by 10% just to break even... Diesel fuel has a higher BTU content than gasoline. Then traditionally a diesel engine had about 10% greater thermal efficiency to start with... The offset was that maintenance costs a bit more and the purchase price was higher... If these new direct inject gas engines gain considerable efficiency then that will change the balance.
As far as why people let diesel's idle... Number one... A turbo engine should idle 3-5 minutes before shutdown if it's been pulling. This to allow the turbo time to spool down and temperatures in the head and manifold to stabilize. It's only in more recent times that this has not been specifically recomended... seemingly at the continous expense of 3500 dollar turbo's. The other factor... when you've changed enough starters or dealt with engines that barely had enough starter.... or engines that would crank OK cold but not when they're hot... then you'll understand why so many people let diesel's idle. A little bit of idle is better than a tow home.
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Today's Featured Article - Show Coverage: The Old Gold National Antique Tractor Show - by Cindy Ladage. Over the fourth of July weekend, the Illinois State Fairgrounds in Springfield, Illinois, was the site of the Old Gold National Antique Tractor Show. Tractors of all makes and models were displayed and separted into categories by their age. Deere, Oliver and even a Wards and Keck Gonerman were part of the crowd. A sea of red International Harvester's seemed to be the the model with the biggest showing. The crowd was decent for the scorching July heat. The opening day started o
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