Quote:
Originally Posted by henk4
ah, now I see your point, not only diesel contains more kilojoules, but it also does not need the high revs a petrol engine requires, although I guess that a blown petrol engine would already be a step in the right direction.
You say that diesel burns more completey, any idea by how much compared to petrol?
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Internal combustion engines are VERY inefficient anyway. The numbers I've seen thrown around for petrol engines is in the 30%'s, 35-37% maximum, probably for a turbo engine with direct fuel injection. Diesels are 40-42% I think. That can give diesels as much as a 10% efficiency edge over petrol engines. You can of course add hybrid strategies on top of both to gain another chunk of efficiency. But $$$$.
That's just from the top of my head; some other members certainly know more about the finer details.