Opti-2 is a specialized two-cycle, single mix ratio lubricant engineered for use in all two-cycle engines, regardless of brand, model, or mix ratio. Opti-2 is rated ISO-EG-D++, the highest rating available in the stringent International Standards Organization global performance ratings system. Opti-2 meets and exceeds all equipment manufacturers rating requirements. Opti-2 is formulated utilizing patented Eutectic additive technology that provides exclusive performance results. Each pack is rugged, re-sealable, re-usable protective tube is great for carrying in toolboxes and chain saw cases. 1 pouch mixes with 1-gallon of gasoline. This includes (12) one gallon mix pouches.