Things I liked:Surprisingly, this product is not available as widely as Crossman airguns are. Of course, use of any petrol-based lubricant in the compression portion of compressed airguns, can cause Dieseling, or pre-detenation, which is very destructive to the seals, dangerous to the shooter, and causes extremely high velocity, at a destructively high cost. You don't need much.. a drop or two every 200 shots, so this tube should last awhile. This is a silicone based lubricant... keeps the seals pliable and maintains like-new compression. Things I would have changed:Still, I'd like to see this product available in a variety of sizes of containers. It would be nice if Crossman included a tube of this with their rifle/pistol package, when you purchase a new airgun. What others should know:Don't put this in the barrel-- just the compression chamber. Less is more. Happy shootin' pardners.