STARFIRE TC-W3 2-Cycle Engine Oil is licensed with the NMMA (National Marine Manufacturers Association) and offers a significant savings over major branded 2-Cycle motor oils. No matter which motor oil you need, Coolants Plus, Inc. can get it for you. We supply conventional, Synthetic Blend, Full Synthetic, dexos1™ Gen 2, Heavy Duty Diesel, 2-cycle/Marine.