Some basic facts about 100 million gallons of waste cooking oil are disposed of in the US per year. Filtered Waste Vegetable Oil (WVO) can be used straight in diesel vehicles with conversion kits, or can be refined into bio-diesel also usable in vehicles. Bio-diesel refining involves some toxic substances methanol for example and reduces the cost differential between conventional and recycled fuel. However it still makes use of a waste product as an alternative to new petroleum consumption. MANY areas of the country have oil gathering services that will gather restaurant or food service WVO on a regular basis and refine it into bio-diesel. Company’s like RecycleMyOil.com provide collection services with restaurants/food service to collect and re-allocate WVO (with or without further refinement) for things like cars,trucks, and even heating units in Garages and Sheds. Over 45 million tons of greenhouse gases are produced every year from the burning of diesel in trucks. The recent fuel prices are cause for resourceful ways to act responsible environmentally speaking and one way, is to use waste vegetable oil as a renewable well of fuel for vehicles. There are so many benefits of using this source to replace fossil fuels and some of these include concentrated air pollution, condensed greenhouse gas emissions, and conservation many other valuable resources found on the planet. There are two ways you can use waste vegetable oil in car engines. The first way is that you can use straight vegetable oil either waste frying oil or fresh- pressed oil, however you will need an extra fuel tank and a system for heating and filtering the oil before it reaches the engine. There is one reason why and that is to heat the oil, in its normal state it is too thick. The other way is to simply convert the vegetable oil into bio-diesel, which can be used in a diesel engine without any modifications. Bio-diesel is a fuel supply made from vegetable oil when a chemical reaction occurs between methanol and lye. You can create it from waste vegetable oil that can be collected from most restaurants, or you can use fresh pressed oil but that can be costly. World wide this is being produced today to be sold on the commercial market, due to the fact that anyone can get the right equipment it can even be made in your home. Some of the toxic air pollutants that are concentrated include soot, particulates, carbon monoxide, and sulphur oxides, however nitrous oxide emissions may increase slightly.