Two Premium Fuel Treatments! Ethanol Shield MARINE Fuel Stabilizer and Mechanic In A Bottle Gas & Diesel Fuel System Cleaner. You will receive one 24 oz bottle of Ethanol Shield MARINE and one 24 oz bottle of Mechanic In A Bottle. ETHANOL SHIELD MARINE: America's favorite Fuel Stabilizer is now available on a formula specifically engineered for marine engines. Trust your engine with a product OEMS trust and use! . This preventative maintenance formula eliminates then prevents ethanol-related problems. It removes water, provides easy engine starting all year, and keeps stored fuel fresh. MECHANIC IN A BOTTLE: Fix and maintain ALL gas & diesel engines. This ultra-concentrated synthetic gasoline and diesel additive is for use in all gas, gas-ethanol blends, diesel, and biodiesel blends. Just pour in the fuel tank of any 2 cycle, 4 cycle, or diesel engine to help fix and maintain your cars, trucks, boats, tractors, small engines, and more. Use regularly to maintain PEAK ENGINE PERFORMANCE. Made in the USA.