Using a loop machine replace ATF, it is the old oil absorption and inject new oil, the method of using pressure in new oil will be the old oil out, after replacement, can guarantee gearbox are new ATF inside, also can very intuitive see out equipment, can completely replace the effect, general use cycle machine replace ATF, new oil usage is a times more than traditional manual replacement.Although the cost increases, the effect is obvious.Circulator is a kind of circulating machine, which can dynamically replace the automatic transmission oil with the pressure generated by the machine. The oil change rate can reach over 90%. The operation process is simple, but it needs the support on the equipment.