Ethanol 85
http://www.chevrolet.com/tahoe/features/
What did you eat tonight..? LOL
Industry analyst's predict about 30 years of oil left taking into account new oil findings.
We're in trouble if we don't start switching to alternatives soon.
I've wondered about our biggest challenge: replacing jet fuel for air travel.
Imagine no more commercial airlines?
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FACT: Alcohol burns cleaner than gasoline, produces lower emissions, does not leave deposits in the engine or on spark plugs, and will actually clean out a dirty engine...though by doing so it can cause deposits to break up and clog fuel injectors.
FACT: Alcohol, having different vapor pressure and a different flash point, is less likely to catch fire than gasoline...but when it DOES catch fire, the almost invisible light blue flame is much more difficult to see, as opposed to the bright orange flame and black smoke of gasoline.
FACT: Alcohol has higher octane than gasoline ( about 130 in pure form ) so pinging and knocking is certainly not a issue, and spark timing can be advanced for more power and better mileage....but alcohol by nature gets lower mileage than gasoline ( see my next point ).
FACT: Alcohol has lower energy content than gasoline ( as measured in BTU's ) so you need a substantially larger gas tank to have an equivalent cruising range, of course adding weight in the process.
FACT: Alcohol, when added to gasoline in more than about 10-15% concentration, can be damaging to fuel system components invehicles designed for gasoline, and this damage is usually not covered by auto warranties. Anything above 10-15% concentration requires an E85-certified engine. GM currently markets some E85 engines, and some other companies may also that I don't know of.
FACT: gasoline, with current technology, can only be efficiently produced in large quantities from crude oil and petroleum, where alcohol can be produced from a variety of agricultural sources such as corn, sugar cane, beets.....even recycled garbage in some instances. This will go a long way in weaning us off of imported oil from politically unstable countries. But, of course, it takes energy from other sources to produce this alcohol...sometimes from petroleum sourses as well.
Now......there are many valid gasoline vs. alcohol arguements, and which one is better to use for vehicles, but to MAKE those arguemants one has to start with facts.
Last edited by mmarshall; May 14, 2006 at 11:08 AM.











