👉 Garbage fluid, also known as waste oil or used motor oil, is a mixture of various contaminants and residues that accumulate in engines over time due to wear, leaks, and improper maintenance. This fluid contains oil sludge, water, metal particles, and other debris that can severely damage engine components if left untreated. The fluid's primary role is to lubricate and clean the engine, but when contaminated, it loses its effectiveness and can lead to increased friction, overheating, and eventual engine failure. Proper disposal and regular flushing are essential to prevent environmental pollution and maintain engine health.