75W-90 Long Life Synthetic Gear Lube Study in Over-the-Road Applications are extended drain gear lubes engineered specifically to last several times longer and protect gears better than all conventional gear oils.

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AMSOIL E-TEC™ Field Study

AMSOIL HP Marine Synthetic 2-Stroke Oil provides excellent protection in Evinrude® E-TEC™
marine engines programmed to the lean-mix setting View the Marine E-TEC™ Field Study