The PowerBlend Gold semi-synthetic 2-stroke engine oil mixes at a 50:1 ratio with 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 maintain a cleaner engine that helps minimize exhaust-port blockages while protecting other vital engine components from wear and corrosion.