Features Fully Synthetic 2-stroke motorcycle engine oil Fast burning, high protection formula For increased acceleration Excellent engine cleanliness Designed for both oil injection and pre-mix systems up to 50:1 Exceptional resistance to seizure Castrol Power 1 Racing - increased acceleration, ultimate performance for extreme riding Castrol Power 1 Racing is an advanced, fully synthetic 2-stroke engine oil for use in modern, high speed, high performance 2-stroke engines. Its fast burn, high protection formula is designed to release the full potential from highly tuned motorcycle engines.