Sierra TC-W3 2-Stroke Synthetic Marine Oil 18-9540-3Sierra TC-W3 is a fully synthetic two cycle engine oil designed for marine applications. Designed to provide excellent engine protection with superior lubrication for all two-cycle oil injection systems. Whether you premix or have a state of the art advanced lubrication system, the TC-W is perfect for harsh marine environments. Exceeds JASO, ISO, API, NMMA for advanced gen 2 cycle lubricants.Features: Direct replacement for BRP XD-100 2 Stroke Oil; Reduces ring sticking; Ideal for oil injection systems or pre-mix applications; Excellent performance with lower quality fuels; Formulated to improve performance and extend engine life; Interchange: Johnson/Evinrude Outboard; 764357;