AFTER 15 YEARS AND OVER 20 MILLION BOTTLES SOLD, AMERICA'S FAVORITE FUEL STABILIZER IS NOW AVAILABLE IN A FORMULA SPECIFICALLY ENGINEERED FOR MARINE ENGINES. TRUST YOUR ENGINE WITH A PRODUCT THE OEMS TRUST & USE! Protect your investment with our new marine formula, specifically engineered for marine engines. 2 PACK - received two 24 oz bottles. EACH 24 oz bottle treats 240 gallons of fuel each. Now available in a clear formula - same product, same quality!