High-performance 2-stroke oil

Why AMSOIL?

AMSOIL specializes in developing synthetic lubricants that offer innovative answers to the greatest challenges vehicles and equipment present. The extraordinary performance of AMSOIL synthetic lubricants in a range of markets – automotive, powersports, industrial, racing and more – has made our influence in the industry unmistakable and our brand highly respected. Our commitment to innovation

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AMSOIL 10W-40 Synthetic Marine Engine Oil

I use my boat year round fishing the Columbia and Snake rivers. There is only one oil that I will trust on my Yamaha outboard. That is Amsoil Marine 10-40! Fights Engine Wear AMSOIL Synthetic Marine Engine Oil’s naturally strong base oils resist viscosity loss due to mechanical shear. It develops a tough lubricating film

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