RED-E Hi-Performance Racing Oil is an ashless blend of premium synthetic-based oils specially formulated for today's high-tech small engines. Providing excellent thermal stability, anti-wear protection, and oxidation prevention, RED-E's friction modifier allows engines to turn more RPMs on the top end and accelerate quicker. RED-E eliminates major carbon deposits, resulting in superior ring and valve seating. Flushing your engine is unnecessary when switching to RED-E.