Unlock the secret to a longer-lasting and smoother-running engine with Marvel Mystery Oil Gas Treatment, 16 fl oz. Since 1923, this trusted formula has been a go-to for car enthusiasts and mechanics alike, offering ultimate engine protection and performance enhancement.Marvel Mystery Oil is designed to be added directly to your gas or oil, providing a comprehensive solution for engine maintenance. When added to your fuel, it helps to clean and lubricate the entire fuel system, including the fuel injectors and carburetors, ensuring optimal performance and efficiency. This treatment also prevents fuel from oxidizing and stabilizes gas during storage, making it ideal for seasonal vehicles and equipment.Added to your oil, Marvel Mystery Oil reduces and prevents varnish and sludge build-up, ensuring smooth engine operation and extending the life of internal components. It enhances oil lubrication, leading to reduced friction and wear, and ultimately, a quieter and more efficient engine.The 16 fl oz bottle features an easy-to-pour design, making it simple to add the precise amount needed for your vehicle's maintenance routine. Safe for use in all types of gasoline, diesel, and rotary engines, Marvel Mystery Oil Gas Treatment is the versatile solution you need to keep your engine running like new.