This product is designed for the restoration， repair and wear protection agents regeneration gel automatic transmission. In the self-draining regeneration agent repair process， the regenerated catalyst in the metal friction surface to form a transparent white cermet layer， the geometry of these parts unit is restored to the status of a new car. Repairable friction surface comprises gears， bearings， clutch. The maximum repair gear wear limit is 1.5mm. Regenerated catalyst generally applicable to Tiptronic®， Steptronic®， CVT (N-CVT / Super CVT ...)， dual-clutch automatic transmission. ! Not contain parts repair range clutch， the entire piece off metal sheet， electronic valves， seals aging caused by internal leakage phenomenon.The amount of additives: Wear serious， the amount of additives may be doubled. Urban driving， every 20，000 kilometers can add one， highway commuter constant speed， add 30，000 km per branch. Automatic transmission oil capacity Refer to the owner's manual and change the amount of oil is different. For example: BMW 2005 Nian 3000CC 3 series gearbox 5HP19-01V capacity is 8.7 to 9.5 liters， exchange capacity is 4 liters. 2010 MITSUBISHI COLT PLUS transmission F1C1， 8-9 liter capacity， exchange capacity of 4 to 5 liters. TOYOTA ALTIS 2012 Nian 1800CC gearbox is K310-K311， 7-8 liter capacity， exchange capacity is 3 to 3.5 liters. Note: after adding the additive effect with can appear within a few kilometers of transmission noise will be reduced， and the shift becomes smooth. If you travel 150 kilometers shifting and noise does not improve， indicating that diagnostic error， the symptoms are not caused by gearbox wear caused by friction of metal.