4x4ord wrote:
Shiner, you are applying a little bit of truth improperly to come up with a stupid recommendation.
I couldn't read your post without at least doing a simple test to give some real somewhat scientific numbers so:
I drove my truck in 5th gear at 1800 rpm/92 kph up a long incline and measured the fuel economy on the DIC .... 13mpg (18.6 liters per 100). I turned around, went back and conducted the same test at 92 km per hour in 6th gear (1414 rpm) and measured 13.6 mpg (17.8 liters per 100). I then did a similar experiment over a stretch of highway going down a grade for the duration of the test... 43 mpg in 6th at 92 kph (1414 rpm) and 33 mpg in 5th at 1800 rpm/92kph. So although a diesel engine may be most efficient at 1800 rpm it is best to let the engineers worry about what gear and rpm your truck should run at. Put it in "D" and go. And choose the highest speed (lowest numerical) rear end recommended for the load you expect to tow.
So you're saying is all we have to do is drive away from school to get better fuel mileage. All us old folks know it is uphill both ways to school.
So if we go the other direction camping... it will be downhill both ways! I should have thought of that sooner..
