... for Limousine ModelDBDS-012ApplicationAnti-wear, self-repair, fuel economy for limousineBrandDUNBAPacking150g/bottleExecutive StandardQ/ZDS001-2008Validity3years 1) ... 863 high-tech Project. 2)Nine functions Fuel economy: saving fuel and engine oil, 5%-25% oil consumption ... fundamentally achieving the engine maintenance; Four in one: Fuel economy, anti-wear, repairing and maintaining simultaneously. 5 ...