Ford 7.3L GASSER rumor confirmed

From the get go...diesel has an advantage.

Both in BTU's per measure (gallon) and higher compression ratio (it all boils down to PSI on the piston top)

But, out of context most discussions like this...

Gotta take into account some of the many variables on the table...that is often left out of the discussion...

First, there is no way to make up for the higher BTU's per measure between diesel and gasoline. Period...


Often left off the discussion is that at any given speed (whether running empty with no cargo/other people/trailer/etc) it takes way less than the ICE's maximum ratings (both HP and Torque).

So a gasser can get lots and lots more MPG than older designs, with the higher BTU factored in or in consideration/allowance

Another is to pavement gearing ratio's vs HP/Torque/RPM curves for that ICE.

Throttle setting vs RPM will be way lower in both, as torque is both higher and had at a much lower RPM

Of course, there are other attributes to consider and too much for any single thread to cover