Posted by 2002sliverado on December 05, 2017 at 11:30:37 from (216.16.75.34):
In Reply to: Re: Gas vs Diesel posted by Oliver 500 Wa on December 05, 2017 at 11:04:07:
There is a man who apparently is producing a conversion kit for New Generation John Deere gasoline powered tractors. This kit gets rid of the carburetor and replaces it with the necessary hardware (and computerized software) for electronic fuel injection. I first saw this in Green Magazine about a year ago. I do not recall the specifics of what was cited in the article, and again in another article about this, but I believe in a 6 cylinder Deere engine, he was experiencing a 20 percent increase in horsepower and something like a 10 or 15 percent reduction in fuel consumption. The company that puts out the components is FAST, which is a fuel injection specialty company, from what I recall. The Deere carbureted gasoline powered tractors, particularly the 3010/3020 and 4010/4020 are subject to criticism on this forum and others, and they are not known for being overly fuel efficient.
I read in one of my auto magazines a while back that with all the advances in the internal combustion engine, particularly in gasoline powered engines, the thermal efficiency gap between gasoline engines and diesel engines is closing. Additionally, with all the "smog control" equipment on the modern diesel engines, I suspect gains in thermal efficiency are getting harder to come by, as well as the added cost of such things as diesel exhaust fluid, service on particulate traps, etc. I can only hope the types of advances we have made with gasoline engines in terms of performance and efficiency, can be ultimately achieved in the diesel engines, too, and that right now we are going through "growing pains" with the smog control equipment in the diesel engine industry.
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