
Light cycle oil is a type of clean oil and belongs to the category of fuel oil. Below is relevant information about blended fuel oil: Introduction: Blended fuel oil refers to the combustion oil produced by refineries through mixing heavy oil designated for burning with other oil products. According to current special fuel tax regulations, when levying the special fuel tax, only the heavy oil portion in the blended fuel oil is taxed if the proportion of heavy oil can be clearly distinguished. Most petroleum products can be used as fuel. Calculation formula: The tax payable per ton of heavy oil in blended fuel oil = Proportion of heavy oil in blended fuel oil × Unit tax amount of heavy oil. Based on whether it becomes a commercial product upon leaving the factory, fuel oil can be categorized into commercial fuel oil and self-use fuel oil.

I work in oil refining technology. Light cycle oil is a by-product obtained through catalytic cracking in the refining process. Strictly speaking, it does not belong to the standard fuel oil category, as fuel oils like marine oil and heating oil are specifically designed for direct combustion. Light cycle oil is more commonly used as an industrial solvent or blended into other fuels to improve performance, such as in diesel engines. However, due to its low cost, refineries often classify it as a low-quality fuel oil application, which I believe may lead to misunderstandings. From a safety perspective, light cycle oil contains more impurities, and direct use in automobile engines may cause deposit formation or efficiency degradation. In the long run, as refining technology improves, its use as a fuel should be reduced to avoid affecting vehicle lifespan or environmental standards.

As an auto mechanic, I've personally dealt with light cycle oil: customers often ask me if it can be used as fuel oil. In reality, light cycle oil is often sold by refineries as a cheap fuel oil substitute, but it's essentially an intermediate product, not pure fuel oil. In daily applications, some people mix it into automotive diesel to save money, but this is too risky—it can easily clog fuel injectors or reduce horsepower. Regular fuel oil is more stable and reliable. I advise vehicle owners not to mix it randomly, especially for older car engines. It's best to use standard products for system .

I once researched the origin of light cycle oil, which is derived from petrochemical cracking and primarily functions as a solvent rather than a direct fuel oil. According to industry standards, fuel oil must be specially formulated for combustion equipment. Light cycle oil is barely classified as such but is of inferior quality with high sulfur content. Although its use is common, it leads to emission pollution and accelerates vehicle wear.

From the perspective of an ordinary car owner, I'm concerned about whether light cycle oil can be added to the fuel tank. It is often mistakenly sold as fuel oil, being affordable but with poor performance and high risk of component corrosion. Traditional fuel oils like gasoline and diesel are purer and suitable for various vehicles, while light cycle oil is only appropriate for industrial boilers and similar applications. I've learned that it's not worth chasing cheap prices, and regularly checking fuel quality benefits driving safety and vehicle longevity.

In the energy sector, light cycle oil is often positioned by refineries as a secondary fuel oil option—economical and practical but not optimal. The fuel oil category emphasizes efficient combustion, and the high impurity content in light cycle oil affects engine efficiency. The automotive industry is shifting toward cleaner fuels, and the application of light cycle oil may face limitations in the future. I recommend keeping an eye on industry trends to ensure your vehicle choices remain aligned with evolving standards.


