Here's another great idea from Slippery Pete! Thousands of satisfied customers have used Slippery Pete's Fluid Pump for Quart Bottles to re-fill their Gear Oil, Transmission and Differential Fluid. Now, Slippery Pete has improved on this already great little pump with these 2 new features: - 8cc per pump stroke instead of 5cc. That means less pumps to empty a quart of oil - A Butterfly adapter on the end of the fill tube that works like a 3rd hand to secure the fill tube while you pump! What are you waiting for? Buy this hand pump today and experience the innovations for yourself! NOTE: This pump will only screw onto standard quart bottle opening! IT WILL NOT FIT RED LINE OR WIDE-MOUTH QUART BOTTLES. However, Slippery Pete's Fluid Pump for Gallon Bottles will screw onto WIDE-MOUTH QUART BOTTLES. Just search for Fluid Pump for Gallon Bottles and you'll find it easily. ??Fits Wide-Mouth Quart Bottles with 38mm Bottle Cap ??Fits Gallon Bottle with 38mm Bottle Cap ??3rd HAND ADAPTER to secure fill tube while pumping ?? 8CC Per Pump Stroke. 17 inch long flexible tube for pumping fluids into tight and awkward places ?? LONG AND SHORT SUCTION TUBES for tall and short quart bottles