Quote:
Originally Posted by elhigh
I've thought E85 missed a few important points in the past; its terrific octane rating leaves a lot of potential on the table in conventional engines. So Cummins adapted an engine for E85-only operation, well and good. Could you run their "Ethos" engine on E0 safely, or would it be a detonating mess? By the PR it's E85 or nothing.
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It is designed to run on E85. If you desire to run on E0 (straight gasoline) there are a plethora of engines that do so already. A simple fuel density circuit in the tank can indicate the presence of E85 or not and can prevent accidental mis-fueling.
People are probably asking "why" for the use of E85 in a heavy payload vehicle. It provides a bridge in the gap for regional transport. CNG is seen as a local fleet fuel. Diesel is your long haul fuel of choice. E85 allows you much longer range than CNG as well as rapid refueling though it cannot compete with diesel in availability in most regions.