"Barnyard BOb" wrote in message
...

"Peter Dohm" wrote:


From Wikipedia, the free encyclopedia:

Energy content

Gasoline contains about 34.6 megajoules per litre (MJ/l) or 131 MJ/US
gallon. This is an average, gasoline blends differ, therefore actual
energy content varies from season to season and from batch to batch,
as much as 4% more or less than the average, according to the US EPA.


Fuel type BTU/US gal Research octane

Regular Gasoline 125,000 Min 91
Aviation gasoline 120,200


BTU/US gal
Gasohol (10% ethanol + 90% gasoline) 120,900
( Research octane) 93/94

- Barnyard BOb -


Most interesting.

Thanks for the update.

Peter
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Peter,
After reading your earlier post and having held similar views for
many years, I thought something like this might be of interest.

FWIW, my rule of thumb...
The cruder the fuel, the more btu/gal.
i.e., diesel blows away gasoline @ 138,700 btu/gal
Jet Fuel: Kerosene* 125,800 btu/gal

*Chevron Products Company 2000


- Barnyard BOb - the devil's in the details

Indeed it is. I did not realize that kerosene was so close in energy per
gallon to gasolene, rather than to diesel fuel. I had presumed (wrongly, it
appears) that kerosene was similar in weight to diesel fuel--and therefore
similar in energy content.

At the moment, I can't seem to confirm the approximate weights--but will
look again tomorrow.

Peter