Your correct I was assuming that gasoline engines had a higher BSFC then diesel. I have seen them specificaly for the TDI and they are right about 1900-2000, which is where I cruise. I did assume from past knowledge that gas engines were higher like in the 3k range, mabye not so anymore?
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I have heard that higher ICE compression ratios are more efficient- perhaps the diesel 22:1 compression ratio helps.
As mentioned in the opening thread, diesels automatically have a respectable 12% advantage. A gallon of diesel has 112% of the btu's in a gallon of gasoline. If we all adjusted our mpg up 12%, that would definitely help to bridge the divide. 1 gallon of gasoline = 124,000 Btu 1 gallon of diesel fuel = 139,000 Btu Source: https://www.eia.doe.gov/kids/energyfa...alculator.html |
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