As an expert in the field of fuels, I can provide you with a comprehensive answer regarding the color of diesel fuel, particularly in the context of farm use.

Diesel fuel, in general, is a byproduct of crude oil refining and is used widely in various types of engines, including those found in heavy-duty vehicles, trains, and ships. The color of diesel fuel can vary depending on its composition, the refining process, and the presence of additives. It is common for diesel fuel to have a light brown to greenish hue. However, the specific color can be influenced by factors such as the crude oil source and the degree of refining.

When it comes to farm diesel, it is important to distinguish between different types of diesel fuels that may be used in agricultural settings. The term "farm diesel" is often used to refer to diesel fuel that is specifically intended for off-road use, which includes agricultural and construction equipment. This type of diesel fuel is typically tax-exempt or taxed at a lower rate to support the agricultural sector.

In the context of the information provided, "blue diesel" is mentioned as being higher in sulfur and tax-exempt, which is suitable for commercial boats, trains, or some farm equipment. It is the least expensive option due to its higher sulfur content. On the other hand, "red diesel" is described as being lower in sulfur than blue diesel, tax-free, and intended for buses, government vehicles, and off-road use. The term "red diesel" is commonly used in the United Kingdom and some other countries to refer to a specific type of diesel fuel that is marked with a red dye and is tax-exempt for off-road use.

It is important to note that the color of the diesel fuel does not necessarily indicate its quality or suitability for a particular use. The color is more of a marker to distinguish between different types of diesel fuels for regulatory and tax purposes. The actual color of the diesel fuel can vary and is not a reliable indicator of its properties.

In summary, farm diesel, like other types of diesel fuel, can have a range of colors from light brown to greenish, depending on various factors. The specific color of farm diesel is not as important as its compliance with regulations and suitability for the intended use. The terms "blue diesel" and "red diesel" refer to specific types of diesel fuels that are tax-exempt or taxed at a lower rate for off-road use, including agricultural applications.

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Blue diesel, which is higher in sulfur and tax exempt, is for use in commercial boats, trains or some farm equipment; it is the least expensive. Falling in between is red diesel, which is lower in sulfur than blue, tax free and meant for buses, government vehicles and off-road use.Jan 9, 1994read more >>