ExxonMobil Mobil JetTM Oil 387, a synthetic High Performance Capability (HPC)* turbine engine oil, is now fully approved for use in a range of GE Aviations GE90 engines including the GE 90-76B, GE 90-85B, GE 90-90B, GE 90-94B, GE 90-110B1 and GE 90-115B.