It appears you have already made up your mid on the matter and no amount of evidence will change that. Its not about the most torque or horsepower. The question is at what rpm the peak torque is at. A gas reaches peak torque at a high rpm. The diesel is normaly at at much lower rpm. The peak torque at a lower rpm makes the torque more usable. If you lug the rpm below the peak torque, the engine will continue to pull down. You mentioned the Ford 172 as an example. I will tell you that the diesel, with a lower horsepower, will outpull a gas motored one. I have had both. As an engineer I have studied the torque/horsepower curves on a lot of engines. That is where you get the real story. The Dodge Hemi truck has the same hp as my diesel. Hook them bumper tp bumper an see who wins in a pulloff. Not to mention fuel economy and engine life.
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