Using a new anti-oxidation, anti-rust, ash-free purification formula, this product effectively controls the formation of engine sludge and carbon deposits, reduces engine friction resistance, restores cylinder pressure, and extends engine life. It saves fuel consumption, stabilizes oil film, prevents oil oxidation and thickening, reduces engine wear, and prevents metal corrosion in the combustion chamber caused by acidic substances during combustion. It significantly improves oil viscosity index and lubricity, eliminates engine oil burning, blue smoke emissions, and other adverse effects, and exhibits good compatibility with various types of engine oil, low ash content, strong synergy, and high safety.