Automatic Transmission Supplement – This product is for the pneumatic or multi-gear shifting transmissions. Does your transmission shift “hard” or have a shudder between certain gears as you drive? Jilcat Auto Trans Supplement will clear metal surfaces of any foreign buildups. The Jilcat will also flow through all the valve bodies, solenoids and other computer reading components to clear gunk and metal shavings that get into the small orifices that block fluid flow and computer reading of the pressures, all are needed for proper performance and to help reduce maintenance of your transmission. Adding Jilcat will clean the surfaces and lubricate better than before. Increase performance and fuel mileage while reducing wear and tear using Jilcat.