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Summary: Diesel fuel is a much more effective method of fueling a low-RPM-torque vehicle because it's much less volatile than regularly refined gasoline. Understand the benefits and drawbacks of using diesel fuel with tips from an auto repair shop manager in this free video on car maintenance.
Brent Ferguson is the manager of Good Neighbor Shell and Auto Service in Nashville, Tenn.read more
"Diesel fuel is a very effective means of fueling your transportation. Although gasoline and diesel are both made out of petroleum products. The diesel fuels are not refined as much as gasoline was therefore it's not as volatile. Ok but not as volatile what I mean is the explosiveness of it. Ok on a diesel fuel you are going, it's compression fired which means you are going to have to run somewhere around twenty two to one compression ratio in order to light the fuel, versus your standard engine which is going to fire somewhere around nine and a half to one compression ratio with the aid of a spark. Diesel does not require a spark to ignite. Ok with that being said, diesel is very, very effective for low rpm torque. That's why most of your big rigs and trucking companies, earth movers stuff like that are going to go with a diesel fuel versus a gasoline. Some of the drawbacks to that is especially in a passenger car ok the availability of it. Ok now you are going to a truck stop or hopefully your local filling station that may had diesel at some point, and especially with the advent of mixing biodiesels with the diesel which is nothing more then chicken grease, that they've reformulated and mixed with the diesel in order to use in passenger cars. I think this is a way to go in the future for green energy and renewable energy sources, however it's not as effective as what a gas engine would be for all operating ranges."
eHow Article: Diesel Fuel Facts