Ask the environmentalists.
Here are some interesting statistics.
One out of 3 ears of corn grown in the US feeds cars, not hungry Americans.
One of ten Americans uses food stamps.
Almost all environmental groups want to pay even more subsidies and turn more food into gasoline, and more multinationalist agribussiness farmers and oil company tycoons into millionaires and billionaires. It’s not about poison; it’s about how warm the poison is.
The planet is at stake they say, but THEIR CHILDREN are not starving; not yet, anyway.
And the bad news keeps on coming. Another staple, soy beans is becoming very profitable to convert as fuel, and corn is being planted instead of comparatively cheap food crops.
Starving all the hungry is a terrible way to win the war on poverty.
Finally, I would never trust anyone who thought that biodiesel was clean. They had to want this so bad that truth and reality just didn’t matter and all rhyme or reason was in a huge fog, lost.

Because much of the energy in corn-based ethanol comes from burning hydrocarbons in the first place, the cleaner tailpipe emissions are actually just the tip of a very dirty iceberg. If an ethanol distillery is fired by coal (which many are) rather than natural gas, the fuel that it produces will actually contribute more to changing the climate than regular gasoline. And don’t forget all the fertilizer dumped on the fields! When it is exposed to the weather, the nitrogen in the fertilizer generates nitrous oxide, a greenhouse gas 296 times more damaging to the climate than CO2.
One study shows that biodiesel derived from from palm oil grown in Indonesia is in fact 10 times more damging to the climate than conventional diesel. Meanwhile, it is expected that the Indonesian rainforests will be 98% gone by 2022, cleared away in order to make room for this supposedly "green" fuel. Another study calculates that clearing forest to plant biofuel feedstock results in carbon emissions as much as 400 times wrose than conventional oil!

although biodiesel is environmental friendly but its not having a good power and speed for car especially normal car than gasoline.so, i need to know that which type biodiesel is suitable for normal car cause diesel ussually used for large vehicle.

How much does it cost to produce ethanol and biodiesel and any other alternative fuels that you can think of compared to gasoline?

I live in Phoenix, Arizona. Do you know of anyone who can convert my truck to biodiesel, and what do you need to do to convert a truck to biodiesel? I want to keep using my truck in an environmentally sound way, and I want to make a stand against using oil by not buying gasoline anymore!

What are the advantages and disadvantages of using biodiesel fuel compared to using diesel/gasoline.

What are the beneficial and harmful sides to using Biodiesel? Is it the best energy source? Is Gasoline better? Please include facts and statistics?

For example: If you put 1 litre of biodiesel, 1 litre of diesel, and 1 litre of regular gasoline, which one would last the longest? How long will it travel? Please give accurate numbers if possible. I will really appreciate it.

Biodiesel is commercially available in most oilseed-producing states in the United States. As of 2005, it is somewhat more expensive than fossil diesel, though it is still commonly produced in relatively small quantities (in comparison to petroleum products and ethanol). Many farmers who raise oilseeds use a biodiesel blend in tractors and equipment as a matter of policy, to foster production of biodiesel and raise public awareness. It is sometimes easier to find biodiesel in rural areas than in cities.

In the United States, alcohol fuel was produced in corn-alcohol stills until Prohibition criminalized the production of alcohol in 1919. Interest in alcohol as an automotive fuel lapsed until the oil price shocks of the 1970s. Reacting to the high price of oil and its growing dependence on imports, in 1975 Brazil launched a huge government-subsidized effort to manufacture ethanol fuel (from its sugar cane crop) and ethanol-powered automobiles. These ethanol-only vehicles were very popular in the 1980s, but became economically impractical when oil prices fell – and sugar prices rose – late in that decade. In recent years Brazil has encouraged the development of flex-fuel automobiles, where the owner can use any mixture of ethanol and gasoline based on their individual cost and performance goals. In 2005, 70% of the cars sold in Brazil were flex-fuel.

Production of biodiesel, according to the University of Idaho report, is very efficient, with 4.2 BTUs of liquid gained for each BTU used in production and processing. They also found that, if “farmers were allowed to grow rapeseed as an energy crop on set-aside or CRP acreage, biodiesel would be used in agriculture. If the environmental advantages were fully understood, biodiesel would become the fuel of choice, even at a higher price, for many environmentally sensitive or pollutant-prone areas.” (Rapeseed is a winter annual producing about 2,000 pounds of seed per acre – yielding about 100 gallons of oil for fuel, and 1,200 pounds of meal). The Idaho report noted that transesterification (using an alchohol in the presence of a catalyst to chemically break the molecules) is needed before the rapeseed oil can be used in ordinary diesel engines. The Univeristy of Idaho used a 200-gallon batch reactor to produce methyl and ethyl esters from rapeseed oil.

Although alternative fuel sources are not sufficient and still not ready to take over, they are still better than nothing. As people already start worrying about their future, which seems to be darker and colder with each passing day, alternative fuel sources will become more and more popular. Their importance is not overrated at all as humanity has already exhausted half of the worlds oil reserves and it will not only become more and more expensive to extract smaller and smaller amounts of oil, but it will definitely come to its end one day. Unfortunately our economy now seems to be so dependent on gasoline that even if we switch to alternative fuel sources, and the sooner we do that the better for everyone, it might still not be enough to save our lives. Not being one of the major alternative fuel sources for cars, solar power is actually a very useful one and whats more it will always be available for us to use. The main application of solar power is in our houses where with a few solar panels we can provide all the heating and the hot water we will need. Apart from that there are other ways also of getting an entire house powered and running only using alternative fuel sources, although it is still an expensive option.

A large step towards switching to alternative fuel sources were the Hybrid cars. Technically they dont actually use alternative fuel sources, but they have found a way to optimize gas consumption to the unbelievable 50 miles per gallon or even more with the use of conventional gasoline. And thinking realistically this is way better than burning alternative, but still inefficient, fuels such as vegetable oils, Biodiesel, ethanol etc. of course those vehicles powered by alternative fuels free us from the dependence on oil, but they still pollute the environment with the smoke coming out of the exhausts. That is the main reason it doesnt make any sense to me. Why should we switch from one thing to another if the second one is not going to be any better than the first? Hydrogen and electricity seem to be the two most promising alternatives for fueling our future. They are very closely related as hydrogen is a highly efficient power storage option, and stored in the form of hydrogen in the car, the power is, when needed, being converted in electricity. In this way constructors avoid the need of huge and heavy batteries to store the energy. Losing the batteries on its turn, means that the car can be lighter and thus much more efficient and easier to run and maintain. These two alternative fuel sources might become the long awaited solution for the worlds fuel problems; however they need to be perfected first.