In overseas project operation, fuel consumption is one of the largest continuous costs after labor. Many buyers only focus on initial procurement price and ignore fuel differences caused by equipment adjustment, condition adaptation and operating habits. The same model may have a 10%-20% fuel consumption gap in different scenarios, resulting in huge long-term operating losses. Power adjustment, hydraulic matching and transmission efficiency determine basic fuel consumption. Equipment adapted to light-load conditions adjusts power output accurately to avoid redundant fuel waste; heavy-duty models optimize transmission ratio to reduce power loss. Standard operation, regular filter cleaning and unobstructed heat dissipation effectively avoid extra fuel consumption caused by overloaded operation. Low fuel consumption and high-efficiency equipment are the core of long-term profitability for overseas construction enterprises.