Originally Posted By: RangerGress
Cost of diesel. As you'll see discused in my links above, diesel isn't that expensive if you shop around a bit. I ran 89 octane, mid grade in GA, in my '06 F-150. Altho rated for 87, I figured it would be better to up a grade for towing. The price delta for diesel is much larger than what you normally see for gas. Within a mile of my house gas prices vary by ~10cents, but diesel by 50cents. What that means is that you have to shop a little harder for diesel. I can always find diesel for ~10% more than 89 octane. The Ram gets 1/3rd better mpg as a DD than the F-150 did, and almost double the mpg when towing.
First, I refuse to use cheap diesel in my 10 year old car--I can't imagine running "cheap" diesel in something newer with vastly more expensive injector system. One slug of water and it's game over.
Second, you chose to run 89 octane becuase... you thought it would do better? Not that it did, but because you thought it might? Cheap diesel vs mid range (top tier?) gasoline. I'm not trying to flame you but it sounds like special pleading. The Ecoboost appears to do better on higher octane, and some other vehicles might--so that make sense, and make for a fair comparsion. But unless if it's absolutely known then it's really not fair. If the truck pulls the same on 87 octane, then 87RUG vs D2 ought to be the comparasion.
Right now it seems like D2 is running 30% more expensive (I think, I don't pay that much attention, and even by my own standards, I'm using pricing from a "spendy" place that I usually go to). $2.62 vs $3.43? Something like that.
Originally Posted By: RangerGress
Yet the tow capacity of the '99 Ram was only slightly less then my 2014 ED. So when one says the towing with the ED at it's capacity is unsafe, what is the measuring stick for that statement? Certainly it's not historic norms.
This I do agree with. Older trucks made do with inferior parts (proper at the time, but clearly not in the same class as today). I still am not convinced at towing at published limits is a great idea, but clearly we have come a long ways, and pulling at or near the limits is not what it used to be.