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PRODUCTS - MAINTENANCE REPAIR AND OVERHAUL


ance in extreme service applications at high temperatures, well beyond the capabilities of mineral oils. Exxon Mobil Corporation pioneered synthetic lubri-


Transmissions in civilian and military helicopters often


operate under very challenging conditions — from heavy loads to extreme temperature variations, and reliability is non-negotiable. Choosing the right lubricant can help min- imize these conditions, ensuring reliability, a long time between overhauls (TBO) and low maintenance costs.


RELIABILITY IN EXTREME CONDITIONS Mobil AGL Synthetic Aviation Gear Lubricant offers


measurably better wear protection for transmissions operat- ing at high temperatures than Type I (MIL-L-7808) and Type II (MIL-L-23699) turbine oils, as well as wear resist- ance that is especially beneficial to military and other heli- copters operating under unusual stresses. Mobil AGL is formulated with synthesized hydrocar-


bon-based fluids. The combination of a naturally high vis- cosity index and a unique proprietary additive system help enable the gear lubricant to provide outstanding perform-


cants more than 50 years ago and has been a leader in syn- thetic lubricant research and manufacturing ever since. Mobil AGL continues the legacy. It is specifically formulat- ed to provide outstanding equipment protection, extend oil life and enable problem-free operation. Tested and proven in the real world Arizona-based MD


Helicopters, an aerospace company with products known for speed, strength and high performance, tested Mobil AGL extensively. The company started investigating lubrica- tion improvements for its fleet’s transmissions when some operators experienced difficulty reaching a 3,000-hour main transmission overhaul period. “Field evaluation tests on our single-engine product line


allowed increasing the overhaul period of main rotor trans- missions from 3,000 to 4,000 hours, if the transmission operated exclusively with Mobil AGL,” says MD Helicopters Engineer Scott Hendrickson. “The 33 percent increase in time between overhauls (TBO) provides operators with a corresponding decrease in operating costs.” MD Helicopters requires the use of Mobil AGL in all


current production transmissions and recommends its use in older designs. ◆


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