A device, often implemented as software or a mechanical slide rule, designed to determine the precise ratio of two-stroke oil to gasoline required for optimal engine performance. For example, if an engine manufacturer specifies a 32:1 fuel-to-oil ratio and the desired fuel quantity is one gallon, the device calculates the necessary amount of oil, typically expressed in ounces or milliliters, to achieve the correct mixture. This ensures adequate lubrication for the engine’s internal components.
Adhering to the correct fuel-to-oil ratio is crucial for the longevity and efficiency of two-stroke engines. Insufficient oil can lead to premature engine wear and potential seizure, while excessive oil can cause carbon buildup, reduced performance, and spark plug fouling. Historically, achieving this precise mixture relied on manual calculations and measuring devices, which were prone to error. The introduction of these specialized tools simplified the process, improving accuracy and convenience for users.