Boating Essentials - Gas / Oil Mixing Bottle - BE-GE-52615-DP This two-stroke Gas / oil mixing bottle from T-H Marine measures oil to add to fuel. Comes with easy-to-read guidelines for the correct oil ratio for your engine. 2 Stroke Oil Mixing Bottle Measures Oil to add to Fuel Easy to Read Guidelines for the Correct Oil Ratio for your Engine Large Opening Avoids Messy Oil Transfer Great for Carrying Back Up Oil