Ford F150 is going Powerstroke Diesel

mkirsch wrote:


MARGINALLY better fuel economy for substantially better performance.

The mini-diesels offer SUBSTANTIALLY better fuel economy with marginally less performance. Maybe.

Actually that is not necessarily true in regards to actual savings. You have to factor in that a fuel mileage increase on an engine that gets less fuel economy has more of an impact than one that gets better fuel economy.

For example, going from a Ram 6.4L gas that gets of 12 mpg(according to Fuelly) to the Cummins with better towing performance that gets 16 mpg(4 mpg increase), you will gain $312 a year if you drive 15,000 miles and gas being $2.50 with diesel $.50 higher. Going from a Ram 5.7L that gets a combined 16 mpg to an Ecodiesel with much less towing performance that gets 22 mpg(6 mpg increase) is only a $298 savings a year using the same fuel prices and annual mileage.

So even though the diesel in half ton has a greater mpg increase numerically, it does not necessarily mean more savings. The higher the fuel economy the truck you are comparing the diesel to has, the greater the fuel economy increase will needed to be to benefit.

mkirsch wrote:
You gotta remember the gas engines make those HP/TQ numbers at high RPMs. The diesels will be cranking out 440ft-lbs down in the lower RPMs where it is useful.

Not all gas engines. The Ecoboost makes 470 lb-ft between 2,250-3,500 rpm, and has another 125 hp more than this diesel