Developed for professional use in high-RPM, 2-stroke racing engines. The ultimate in 100% synthetic lubrication. Identifiable Klotz Red...Smells like Klotz. Offers the protection of bean oil with the clean burn of synthetics. Clean Burn™ technology reduces carbon residue and build-up. Dyno and race track-tested. API S.A.; intended for racing engines ONLY. Sold individually. Note: Recommended for use with premix ONLY.