... usingthe recommended dosage for motor fuel is 0.1‰-1.0‰,or use after diluting with toluene, xylene, gasoline, diesel fuel etc ... Fuel Stability Improver( 1).Improving the oxidation stability of vehicular gasoline, diesel and other blending fuel oil, enhance diesel quality; (2 ... 3 months if opened. Quality assurance is for 2 years. Gasoline Stability Improver