There was lots of confusion after new stickers started showing up on gas pumps around Houston. Some say ten percent ethanol, others E-85. So which one is right for your car and will it damage your ride?
The reason we're seeing ethanol added to gas is because of MTBE. What's that? A gas additive we've all been using for years that was declared unsafe for the environment.
The replacement is E-10 or a ten percent blend of ethanol with ordinary gasoline.
Ethanol is made from corn and other grains. Manufactures say it is a clean-burning fuel that can reduce exhaust emissions.
But will it hurt your car? Mike wrote into the KTRK Consumer Blog and asked:
"I got gas at a new station and the pump said 10% ethanol. Is it safe to use even the low percentage or do i need to just stay with plain old unleaded?"
Experts say there is no danger.
"It is a fuel, it improves the performance of the gasoline, all engines sold in the US are compatible, they have been for years," said University of Houston chemical engineering professor Dr. James Richardson.
But then there is E-85. That's 85 percent ethanol and 15 percent ordinary gasoline. This is the fuel that not every car can handle.
Robert wrote into the KTRK Consumer Blog:
"I filled up my 1999 dodge caravan with E-85 last night on the northwest side. The pump was at Kroger's on Highway 6, it's working great. Are there any more places around town to get it?"
Yes. There are only four locations in town right now, but more E-85 pumps are sprouting up around Houston from Tomball to Pearland and across America.
"Last year there were 600 filling stations and they expect this year there will be 2,500 and that's a big increase," said Dr. Richardson.
Jerry wrote to us. He told us that GM says on its website that vehicles running on E-85 may have a cruising range that is about 25% shorter than the same vehicle operating on regular gasoline.
That's true says Dr. Richardson, "In fact its 25 to 30% less."
Why is ethanol being used?
So what's the big deal with this new E-85 fuel? It doesn't give your car any more oomph, it only works in certain cars and it really doesn't cost that much less.
What it does do is cut down on pollution and stop our dependence on oil from the Middle East.
Right now E-85 is about thirty cents cheaper than the price of regular fuel. Experts say as the manufacturing process becomes easier, prices should start coming down.
Who is using it?
At a beer distributor near the middle of Houston, Ed Pritchard is responsible for a lot of vehicles.
Nineteen of which are flex -fuel vehicles, built to run on E-85. Pritchard says he's noticed no difference in driving.
"As E-85 has been available for us to run in our fleet, we've put E-85 on top of a half a tank of regular unleaded and there is no difference whatsoever," said Pritchard who works for Silver Eagle Distributors.
The reason for the switch? Experts say E-85 is better for the environment. But there has been a drawback.
"The biggest thing is there has been a mile per gallon penalty and what we've seen at our operation is about 20%," Pritchard said.
The Future
It's ironic that a beer distributor is using this corn based alternative fuel, because it's ultimately alcohol.
"E-85 is a blend and the reason it is blended is to denature it so it is poisonous so that we use all we can and drink it at the end - we don't want to do that," said Mike Merwarth of Clean Fuel USA.
And while corn is usually the main ingredient at this point, researchers are already working to replace that with waste says Merwarth, "From tree chips, for instance all the trees that were blown down from the Hurricane Katrina disaster, all of those things could be put into a biomass and hopefully be made into a fuel."
Experts say ethanol is a way to get the US less dependent on foreign oil and help the environment but it's just the first step.
"There is no way we can replace our usage of fossil fuels from stuff we grow, we don't have enough land," said Dr. James Richardson.
So will your car take E-85? And where can you fill up with this new fuel? We have the answers on the KTRK Consumer Blog.
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