Has anyone else used the NEW 84 octane gasoline yet?

[Omaha Steve]

15. From Consumer reports: Most recent studies have shown a positive energy balance for ethanol

http://www.consumerreports.org/cro/2011/01/the-great-ethanol-debate/index.htm?loginMethod=auto

Snips.

Most recent studies have shown a positive energy balance for ethanol of between 23 and 40 percent.

We put our 2007 Chevrolet Tahoe FFV through our full series of fuel-economy and acceleration tests while running on each fuel. When running on E85 there was no significant change in acceleration. Fuel economy, however, dropped across the board. In highway driving, gas mileage decreased from 21 to 15 mpg; in city driving, it dropped from 9 to 7 mpg. You could expect a similar decrease in gas mileage in any current FFV.

We also took our Tahoe to a state-certified emissions-test facility near our test track in Connecticut and had a standard emissions test performed. We found a significant decrease in smog-forming oxides of nitrogen when using E85. However, ethanol emits acetaldehyde, which the EPA lists as a probable carcinogen and something that standard emissions-testing equipment is not designed to measure. But that might be a relatively minor evil, however.

"Acetaldehyde is bad," says James Cannon, president of Energy Futures, an alternative-transportation publication, "but not nearly as bad as some of the emissions from gasoline."

FULL story at link.