Before diesel became common slang for somebody large and robust or just hardcore, it mostly applied to machinery that were big tough strong work horses. Trucks, tractor-trailers, large earthmoving machinery, which catered for the heavy duty industrial work force. But it was never that popular as fuel for conventional everyday cars, which is really a shame, because diesel could have saved the consumer lots of money.

Diesel is essentially a less refined version of gasoline, and costs the oil companies that make it something like twenty five percent less per gallon to manufacture, although in saying that the end product itself usually costs a bit more than gasoline.

The advantage's of using diesel is that it gets a lot better when it comes to fuel economy and produces far less pollution than the regular gasoline, which is few of many reasons why it's very popular in the industrial sector (mining,farming etc). There's no particular known reason why diesel was never so popular for everyday conventional vehicles, aside from the fact that diesel engines were initially designed for industrial and 4x4 vehicles and have always had that association together.

Diesel prices have risen just like gas prices have, so they haven't become especially popular as a means to save on gas. This is compounded by the fact that most diesel vehicles that the ordinary person would use are either pick up trucks 4x4 vehicles, not especially popular for city driving, or imported foreign cars that may be hard to find.

this is Where vehicles using diesel have an advantage is that, unlike your typical everyday vehicles, they can burn a different various number of fuels, all of which fall under the general definition of diesel. Most often The one we hear about, and the one that's become most common, is biodiesel.

As the name biodiesel might have you thinking, biodiesel is produced from organic sources. It's become so popular commercially that it's become necessary to make the distinction about what kind of diesel you're talking about.

Unfortunately, biodiesel is not any cheaper than the regular stuff as once was, so while using it might make you feel a lot better about using a sustainable resource, it is not going to do much to improve your gas bill.

What you might not know is that there's another type of biodiesel out there. Suprisingly you can actually put used cooking oil in your diesel car and it will run without any kind of modification to the engine. This may be surprising to you, this is no accident or new discovery, this is exactly what diesel engines were designed to do.

The diesel engine was invented by Rudolf Diesel. His objective was to create an engine that would run on vegetable oil, thus making it more affordable and giving the small farmers the opportunity to compete with those who could afford the more expensive gasoline machines.

Now this is an opportunity to save your hard earned cash. If you can pick up an old diesel vehicle or if you have a diesel vehicle, you can now run it entirely on oils that your average restaurant is looking to dispose of. They'll be happy to see you take it of there hands. After all it cost them money to dispose of the used cooking oils.

If you' keen to have a go and learn more about using vegetable oil to run your car, it's very much possible to run your car for free, Which you have to admit to yourself, it is a great improvement compared to four dollars a gallon.