... , reduce maintenance costs4, removal and prevention of carbon deposition5, reduce engine noise6, clean exhaust emissions7, extend engine life 4, product differentiationAppearance Solid ... the best.After installation, keep no moving for 8 hours, then drive for about 1 hour to reach the fuel modification ... ,the effect is the best. After driving 800 kms with this product, some dirt carbon will go to the oil ...