Can a 94 Ford Tempo run on E85 Ethanol?

No. E85 requires a vehicle to be designed to run it. It requires different internal engine componets, such as valves, and different computer stradegies such as timing and air/fuel metering. E85 is cheaper, but there really isn't any econmic benefit to the consumer to run E85. Because while it may be cheaper to buy, it gets significantly less miles per gallon. It isn't as efficient, so you burn way more fuel.