Driven 75W-140 Racing Gear Oil is a synthetic blend used by top race teams. It reduces operating temperatures by up to 15 degrees more than other brands. The oil also reduces friction and provides shear-stable viscosity for outstanding gear durability. It eliminates the pitting and scratching of gear sets seen as a result of lower viscosity oils, and it does not increase drag or reduce horsepower. Even after six hours of driving it maintains its viscosity, and extended change intervals allow it to be used race after race. These performance gains can be just the advantage needed to reach Victory Lane.