Turtle n Peeps wrote:
To make a long story short; compression. It takes a lot of energy to compress a 16 to 22 to 1 piston. And if your foot is off of the go pedal there is no bang in the cylinder so your trying to compress a lot of air and the down hill grade energy is doing that.
When my dad bought his 93 diesel he was going to take a trip to Alaska and was freaked about doing it because of the same old tired stories he heard about diesels. When he got back he said that those people don't know what they are talking about. He said it held back better than my old truck. (Which was a gas small block with 3 speed auto). Remember, this is with an old 4 speed diesel with no TH or anything like that.
In short, you have nothing to worry about. Stick it in TH and drive it how fast or slow you want to go.
And that energy to compress the cylinder is almost all returned when it un-compresses on the down stroke. Until you have owned a Dodge/Cummins people do not seem to get it. The V8's seem to hold back better.
Chris