The "Original" premium two-cycle premix racing castor! Formulated from the cleanest-burning, highest grade, triple-filtered castor. Blends with all fuel types including methanol to provide sustained performance at high internal temperatures and RPMs. Contains a rust inhibitor and seal preservative. The "Original" premium two-cycle premix racing castor! Formulated from the cleanest-burning, highest grade, triple-filtered castor. Blends with all fuel types including methanol to provide sustained performance at high internal temperatures and RPMs. Contains a rust inhibitor and seal preservative.