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I though back when Bush Jr was in office he passed a law that all gas in the US had to be an ethanol blend.
Was that just a temporary thing?
I say lets all remove the warning labels and let nature take its course.
Can someone explain how adding or removing ethanol from gas affects a modern car engine? How about gas storage?
edit: these stations seem to carry only 91 ethanol free. That will probably run worse in my vehicle.
Last edited by keylay31; 06-02-2013 at 07:16.
Actually hit up two of the stations listed on my way to KC, it was only the low grade (regular unleaded 85 octane) that they had was ethanol free. My truck needs premium, and it contained ethanol at both stations.
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Ethanol or any alcohol has a less violent ignition than gasoline. This means during the burn phase in an internal combustion engine it gives less power. Secondly, most modern fuel injected engines run in a open loop fuel stage looking at the oxygen sensor to get a clean burn. Ethanol and alcohols fool the oxygen sensor into thinking it is running lean due to the burn characteristics and run richer causing you to burn more fuel than using straight gasoline. If you are running these fuels in an older carb engines you will run lean unless you enrich the mixture to adjust for the alcohols.Originally Posted by keylay31
Long story short you get less power and poorer fuel economy using oxygenated (alcohols) in fuel.
I say lets all remove the warning labels and let nature take its course.
Thanks!
Airports carry 100-octane low lead gasoline (no ethanol). It's expensive, so I mix it 50/50 with the 88-octane no ethanol to give me premium for my chainsaw.
Fuel with ethanol is corrosive, and not good for cars built before 07. Plus it rots the rubber gaskets and pickup hoses in the fuel systems of small engines like chainsaws, motorcycles, law mowers, etc.
Believe it or not, it also creates more dirty emissions then fuel without ethanol. It's all political, and soon they will be forcing the stuff with 15% ethanol on us.
Be careful running 100LL in your car. The LL stands for Low Lead, but it's not actually low lead AT ALL. As a comparison, 100LL has 2 grams of lead per gallon while unleaded car gasoline has a mandated maximum of 0.1 grams of lead per gallon. All that extra lead can really gum up your valves if your car isn't designed for it.
There's a place that sells paperwork for light aircraft to use auto gas in place of 100LL. They have a great discussion of the differences between 100LL and unleaded auto gas.
http://www.autofuelstc.com/stc_specs.phtml
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Awesome thanks for the share!
You know what's scary: I've been in the "lead room", actually a building, in the Chamber Works. That's a duPont chemical plant in south New Jersey. That's where they manufactured the tetraethyl lead to add to gas all those years. That place is messed up, completely sealed now, I had to wear a "space suit" complete with air hose going to the outside of the building so we could do maintenance. That building can apparently never be torn down, or it would release so much lead into the atmosphere.
Sad part is, that was the "least lethal" building on that site.
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FYI Leaded fuel will not gum up your valves. What it will do is plug up your catalytic converter because the lead will not burn out of it. It also causes lead fouling on the spark plugs.
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