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Gear additive technology for extended drain commercial driveline requirements. V. Bala, I. Mac Pherson and D.K. Walters. NLGI Spokesm., June 1998, 62(3), 24--31.

Changes in oil and additive requirements for gear lubricants are emerging as a result of advances made by original equipment manufacturers (OEMS). Lubricant trends and consequences are reviewed for commercial vehicles, axles and manual transmission gearboxes. Test methods and parameters evaluated are tabulated. Specifications required by nine different OEMs are reviewed for SAE grade, viscosity/performance requirements, and recomended oil drain periods. Performance features discussed are pitting/toothlife/durability, fuel economy/ improved efficiency, and thermal/oxidative stability. Development of additive technology to meet the new performance requirements in both mineral and synthetic base oils is discussed. 5 refs.

Abstract details

Journal title: NLGI Spokesman

Keywords: Additives for fuel and lubricants

Subjects: Lighting, Measurement, testing and control, Fuel quality and control, Economics, business and commerce, Gas works (and other conversion to gases), Transmission, Chemical and petrochemical, Commercial, Transport, Transportation, Transmission and Distribution, Additives and oxygenates, Lubricants, Oil and gas, Oil