[Jeff Chandler]

This is a good example of what's wrong with trying to force exotic fuels into the existing infrastructure.

Exotic fuels can be a good idea under controlled circumstances. Local fleets are one example, where the specialized fuel, parts, and maintenance are centralized. Large farms would be another, where the farm's equipment and utilities could be run on cellulosic ethanol derived from crop waste.

[sphinx]

This is a good example of what's wrong with trying to force exotic fuels into the existing infrastructure

It's not an "exotic" fuel; its a different fuel and has to be used appropriately. All cars on the road today can run a 10% blend. Apparently marine engine manufacturers aren't as far along. It's an easy enough change to make, but owners need to pay attention to what they're doing during the phase-in.

One of the issues with biodiesel, for example, is that it has a detergent effect. It helps clean the engine and keep it clean. This is a nifty thing in a new vehicle, but it can be a problem in an older truck engine with 500,000 miles of gunk in it. I don't know if ethanol in older engines has a similar effect.

[Spktyr]

Except these fuels that people are talking about aren't exotic blends like E85 - these are just the fuels that *used* to come with MTBE that now have to use Ethanol instead, because MTBE is *nasty*.