Where Does Illegal Fuel Come From?

[NatalieFitz]

Most illegal fuel comes from refineries. Engine Oil Selection: When choosing engine oil, it's not about selecting the most expensive one, but rather about choosing the right oil based on the characteristics of your car's engine and your usual driving habits. You can categorize your choice by the oil used in winter and the oil used in summer. For winter, the primary consideration is the low-temperature viscosity grade. In summer, temperatures are high, so there's no need to choose oil with a better low-temperature viscosity grade. Engine Oil Grades: Engine oil grades are divided by quality and viscosity. Oil for gasoline engines is usually denoted by the letter "S," while oil for diesel engines is usually denoted by the letter "C."

[Lane]

Illegal fuel typically comes from several illicit sources. The most common channel is smuggling, where some individuals transport low-cost oil products from overseas or neighboring countries via ships to evade tariffs and regulations. Another route is underground workshops that illegally refine crude oil or used oil, producing extremely poor-quality fuel that may also be adulterated. I once encountered a friend whose car used such fuel, resulting in engine failure and hefty repair costs. The risks of using illegal fuel are significant—substandard fuel can cause engine carbon buildup, clog fuel injectors, and, over time, damage critical car components. Moreover, it evades taxes, disrupts the market, and harms the environment, as illegal production often involves indiscriminate pollution discharge. For the sake of my car's safety and compliance, I always insist on refueling at authorized gas stations. While the temporary lure of lower prices is strong, the long-term costs outweigh the benefits—maintaining vehicle health is what truly matters.

[DiJameson]

Discussing the sources of illegal fuel, it is primarily obtained through illicit channels. Some individuals smuggle petroleum products into the country, such as secretly transporting them across borders or coastlines to evade customs inspections. Others operate underground refineries, extracting inferior products from discarded oil drums, resulting in inconsistent quality. I've personally witnessed such fuel causing frequent vehicle stalling and recurring engine issues. Using illegal fuel not only damages vehicles but also fuels the black market industry, increasing social instability. Its hazards lie in the high impurity content, which can easily lead to engine knocking and filter clogging. As car owners, we should cultivate good habits by only relying on reputable gas stations. Regularly monitor vehicle fuel consumption to avoid major troubles caused by chasing small gains.

[DelAdelyn]

The sources of illegal fuel are diverse, such as smuggled imports or underground production. These fuels are of poor quality and can easily cause engine problems after use. Car owners need to be vigilant and choose official channels for refueling.