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.
About the time you used "stupid" in your reply I lost all interest in your comment. In the big scheme of things all these forums are for fun and info. When people start using offensive words like "stupid" the thread has no place to go but down. I have yet to find one person that really enjoys being told what they believe or are discussing is stupid. Not sure why we all can't be more careful about the words we choose to use.
And........I found Shiners info enlightening. Everything is happiest at 1800. Not everthing gets done at 1800, but mine is happiest.
