Forum Discussion
Jackjagt
Aug 05, 2009Explorer
A barrel of oil is refined into several energy 'fractions'. One that is heavier and higher in energy, is Diesel, another, lighter, is gasoline.
Diesel fuel contains more energy than gasoline.
Diesel engine use very high compression to extract all the energy, gasoline engines must use lower compression to get the available energy. The high compression Diesel engine also therefore has excellent torque characteristics.
Torque equals acceleration, horsepower equals top speed.
Diesels are expensive to manufacture, gas engines much less so.
Both engines have their place but Diesels are preferred and becoming more popular.
We now seem to be at the point where the Diesel fuel fraction is fully utilised and thus Diesel fuel prices are rising.
My motorhome has a Cat C7, and the 'toad' is a VW TDI.
Diesel fuel contains more energy than gasoline.
Diesel engine use very high compression to extract all the energy, gasoline engines must use lower compression to get the available energy. The high compression Diesel engine also therefore has excellent torque characteristics.
Torque equals acceleration, horsepower equals top speed.
Diesels are expensive to manufacture, gas engines much less so.
Both engines have their place but Diesels are preferred and becoming more popular.
We now seem to be at the point where the Diesel fuel fraction is fully utilised and thus Diesel fuel prices are rising.
My motorhome has a Cat C7, and the 'toad' is a VW TDI.
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