"Wayne.B" wrote in message
...
On Sat, 25 Mar 2006 20:43:47 GMT, Shortwave Sportfishing
wrote:

I have an 2000 F-250 Super Duty diesel with the 7.3 liter engine and
it's more efficient over time, cost me less in fuel, than the previous
F-350 gas pickup.

There are more BTUs in a gallon of diesel than a gallon of gasoline,
plus the combustion process for diesel is more efficient, primaily
because of the higher compression ratio. Taken as a whole diesel is
about twice as efficient at producing energy for a given volume of
fuel.


It is now, but 2007 emissions requirements is going to totally re-vamp
diesels. I don't know if the new emission requirements affect small
pickups, (or boats), but for the trucking industry this is a big deal as
power and mileage are expected to suffer.

They are adding expensive scrubbers to the exhaust that have to be cleaned
and/or replaced regularly and the engines are being detuned to produce fewer
particle emissions. I read recently that the emission changes to the
requirements for diesels is as far-reaching and hard-hitting as the '72
emission changes for gas engines were.

Trucking companies are replacing aging trucks with the 2006 models as
quickly as they can.

RCE