For the best value, choose Eastman™ Turbo Oil 2389 from SkyGeek. The low-temperature turbine oil is the perfect choice for auxiliary power units and other components that may be subjected to long stretches of inactivity in cold weather. The clear engine oil has a synthetic base and a number of additives that are designed to improve thermal and oxidation stability. The MIL-PRF-7808 Grade 3 qualified oil is fully approved in all Honeywell and Hamilton Sunstrand auxiliary power units. For the best value, the oil is sold in a 24-quart case.
