RAM EcoDiesel a Flop for Towing

jus2shy wrote:
Now what would be interesting is testing the efficiency of both trucks, have them side by side with the same load and driven up the mountain at the same speeds (RAM floored and Ford just throttling to match the RAM). Then we can see if that supposed 50% better fuel economy on the RAM would hold up. I'm figuring it would fall back to only 25 or 30% better fuel economy on the RAM.

That is a good point. If the Ford was over a minute faster up the hill, not surprising it used more fuel.

Although, while I'm a big fuel economy guy, testing the economy wide open up a short stretch is kinda pointless!