How practical is it to use vegetable as a car fuel?

I read an article recently that used frying oil can be used as a fuel for cars – with a few engine modifications. Now here is a win – win situation: car owners get free fuel while restaurant owners get rid of their old cooking oil. And, no drilling, oil tankers, or money hungry gas companies and oil potentates. Restaurants probably outnumber gas stations (convenience stores) by a large margin – one on every block at least. Finally, an answer to the petroleum problem.

5 Responses to “How practical is it to use vegetable as a car fuel?”

  1. sel_bos Says:

    I suggest you watch the movie FUEL (2008).

    Rudolf Diesel originally designed the diesel engine to use peanut oil as a fuel.

    In the evening of 29th September 1913, he took a ship (SS Dresden) to cross the English Channel from Antwerp, Belgium to Harwich, England. He took dinner on board the ship and then retired to his cabin at about 10PM, leaving word for him to be called the next morning at 6:15AM. Afterwards, he could not be found the next morning. 10 days later, he was found dead in the water off the Dutch coast.

    Who killed Rudolf Diesel? You figure…

    P.S. to those spammers from China, please leave. you disgrace your country.

  2. ranger_co_1_75 Says:

    You are talking about Bio-Diesel where the vegetable oil is mixed with Diesel to power internal combustion engines, like trucks and some cars.

    The mixture is around 10% and requires additives to keep the oil from turning to margarine in your fuel lines on a cold day.

    Since some states like Washington require Bio-Diesel be sold for trucks and pickups, the price of used vegetable oil has gone up. No one throws it away anymore because it is worth money now.

    The cost more in energy to produce an equal amount of energy from vegetable oil. You spend a gallon and half of vegetable oil to produce one gallon of vegetable oil. And while it does reduce the amount of harmful Fluorocarbon emissions (Green House Gases), it cost more to grow and process the vegetable oil than refining a comparable amount of Diesel or Gasoline.
    Go to the store and price a gallon of olive oil or a gallon of vegetable oil and compare it to the price of oil based fuel. Gas and Diesel cost about 1/3 the price of vegetable oil.

    So it is better for the environment, but is a net loss of energy, and it cost more than the average person can afford.

  3. Nata T Says:

    every resturant makes about 10 gallons per week of waste oil and an gas station has an 10,000 gallon diesel tank. Now explain how there is more veggie oil??

    Look up the price of vegtable oil, its over $4.00 per gallon, diesel is $3.00 per gallon including taxes. If you use veggie oils YOU MUST under penalty of fines or jail, pay taxes on its use of about $.50 per gallon.

  4. Ron B Says:

    There’s a lot of misinformation in these answers. Bio-diesel is NOT straight vegetable oil mixed with diesel fuel at a 10% or whatever ratio. Bio-diesel is made by processing the vegetable oil in a process called transesterfication and then washing, drying and filtering it to end up with a liquid that is very similar to diesel fuel. It can be run in a diesel engine ,without modification, in any ratio with diesel fuel or alone. It takes very little electricity to produce a batch of bio-diesel, less that $.50. Also there are some states that waive the road use tax for bio-diesel that you make for your own use. I have been making my own BD for over 3 years>

  5. military supporter Says:

    Two men from Vermont converted a bus to use cooking oil as motive fuel. They then took it across country to show it could be done However, cooking oil have no where near the energy density of diesel so it would take a lot more fuel for the same drive.