So far I've used this thing to clean a disassembled carburetor and two pistols. One of the pistols was an old russian surplus Tokarev completely soaked in cosmoline. This device filled with dilute Simple Green Extreme made short work of all of it. The car runs great now, and the guns cycle smoothly. If I'd have known I could get a device that makes cleaning this easy I'd have done it years ago.Point to note - "15L" does NOT mean 15 liters. It actually means 1.5 liters - as it that's what it'll hold. It will JUST take in all the parts of a disassembled four-barrel carb, and easily does one pistol - could probably do two or three at the same time. So it's not huge, but it's adequate for my needs.