"Use of additives (in ethanol) makes running (an engine) dangerous, subject to explosions," according to Fiat Powertrain Technologies product development engineer Joao Irineu Medeiros. "The diesel will be just enough for ignition and the ethanol will complete the combustion," he adds. It sounds like the new Fiat design will be a compression ignition engine running on e-diesel. Instead of being mixed at the pump, though, Fiat is planning to keep the fuels separate until injected into the engine. Proper tuning would be essential, which would explain why Fiat needs until 2010 to bring this engine to market.
[Source: The New Economic Times]