Looking for 2-Cycle oil for your 40:1 or 50:1 small engine? STA-BIL makes it easy with its dump and go sizes for all ratios of 2- Cycle equipment. For best performance, we recommend following the manufacturer's recommendations in your manual for the mix ratio needed in your small engine. This STA-BIL Fully Synthetic 2- Cycle oil is a low smoke formula designed to keep your 2-Cycle engine smoke free. This ashless formula burns clean to decrease misfires, ring sticking, and port plugging. Our product is also blended with our STA-BIL Fuel Stabilizer keeping your gas fresh for up to a year. This fully synthetic oil will give the ultimate protection to vital engine components by adding superior lubrication to your 2-Cycle small engine equipment. Great for any 2-stroke engine! Chainsaws, motorcycles, dirt bikes, snowmobiles, ATVs, and more. 13oz size is made to dump into a 5-gallon gas can and be ready to go. The 2.6 oz size is made to be poured into a 1-gallon gas can and be ready for use. Proudly made in the USA.