Lubegard ATF Flush and Protect Pack features the safest, most gentle transmission flush available. Other transmission flushes contain harmful solvents that can actually dissolve seals and gaskets. Lubegard transmission flush is designed to gently flush away varnish, sludge, and other by-products and prepare your transmission for fresh fluid. The directions for use with flush machine: follow the manufacturers directions. The directions for use without flush machine: add one bottle of Lubegard automatic transmission flush to the transmission fluid. With the car on lift (or wheels above the ground) start the engine; circulate for 5 minutes cycling Lubegard automatic transmission flush through all gears. The drain completely. Refill with ATF. After the flush is complete, add Lubegard ATF protectant for unsurpassed protection.