The Echo 1 Grease Set may be a complete gearbox lubricant. The gear grease may be a high viscosity lube designed to stay to the gears whilst they’re turning. The bearing grease is meant to scale back friction on the bearings, this grease heats up and becomes more efficient because the bearings are spinning, basically the more you shoot the higher it works. Finally the air seal grease is meant to be utilized in the cylinder, on the piston head, and inside the air seal nozzle to seal up any possible air leaks and make the right seal for max efficiency.