Lucas Oil 75W90 SYNTHETIC GEAR OIL 946ML - 10047. This Lucas Oil 75W90 Synthetic Gear Oil has been specially formulated to Insures less gear noise and longer bearing life. LUCAS SYNTHETIC GEAR OIL. Lucas Synthetic Gear Oil is a non-foaming, super slick, long lasting lubricant designed especially for heavy duty or high performance applications where other gear lubricants just aren't good enough.
