|
|
| |
Methanol and ethanol are two forms of alcohol fuel receiving the most
attention. Both are made from non-petroleum products. Methanol can be
produced from coal, and ethanol can be made from farm products such
as sugar cane, corn, and potatoes. Both alcohols have a higher octane
number than gasoline. High heat of vaporization, however, indicates
that the use of alcohol could give harder starting problems than
gasoline, which means a need for a larger fuel tank and larger jet
sizes in the carburetor. However, it requires less air for
combustion, which compensates for the high caloric values.
Ethanol is the most common fuel additive; it's an alcohol made from
vegetable matter. Some areas require the addition of oxygenates in
gasoline, because they reduce carbon monoxide emissions by as much as
39%%. They also raise the octane level of the gasoline.
|
|
|
|
|
