ECHO PowerBlend Gold 2.6 oz. 2-stroke engine oil mixes at a 50:1 ratio with 1 Gal. of 89 octane or higher gasoline. The oil formula includes detergents and a fuel stabilizer to maintain fuel's quality, while the detergent assists in cleaner burning fuel and reliable performance. Both additives help to maintain a cleaner engine that helps to minimize exhaust-port blockages while protecting other vital engine components from wear and corrosion. A low smoke emissions formula offers improved environmental impacts on the user and surrounding environment.