Simple Green – SMP13406 Extreme Aircraft and Precision Cleaner, 1 Gallon Bottle 13406

Customers find this cleaning agent effective for various applications, including ultrasonic cleaning of firearms, engine degreasing, and aircraft bellies, while being gentle on dirt bikes. The product leaves aluminum and other uncoated metals shinier without discoloration, and customers appreciate its safety features, noting it's nontoxic and aircraft-safe. They also value its ease of use, particularly its ability to remove grease and lead stains, and its value for money, with one customer mentioning it's affordable enough to use straight as an engine degreaser.