Air BP Turbo Oil 2380 - MIL-PRF-23699F
BPTO 2380 Turbo Oil ( formerly ETO2380), available throughout the world, is now being used by over 350 airlines representing a majority of the free world’s commercial airline requirement for 5 cSt turbo oils. This fact attests to the outstanding performance of this product in the wide variety of engines and accessories now in service.
BPTO 2380 is a synthetic oil having a viscosity of 5 centistokes at 210°F that is approved against US military specification MIL-PRF-23699F-STD, DEF STAN 91-101/2* (DERD 2499), and meets the requirements of most jet engines and associated accessories. It is a Type II oil which provides a more balanced combination of thermal and oxidation stability, load-carrying capacity, lower volatility and low temperature flow characteristics than other 5 cSt jet engine oils. These features provide long trouble-free performance under most conditions. Synthetic oils of this type are not all identical. The performance advantages of BPTO 2380 are achieved by careful selection and balance of basestocks and additives to provide the desired performance.
*BPTO 2380 is approved against DEF STAN 91-101/2 (DERD 2499)for both OX-27 and OX-28 requirements. OX-27 is for use in military gas turbines and accessories. OX-28 is for use in marine gas turbines.
BPTO 2380 is approved for use in most engines and accessories in airline service today. The approvals listed below are current as of the time of printing; however, the respective manufacturer’s manuals and service bulletins should be consulted.
CFM International: BPTO 2380 is approved for use in CFM 56 engines (CFM 56 Service Bulletin 79-001).
Flygmotor: BPTO 2380 is approved for RM8A, B engines (approved on a proprietary basis by Volvo Flygmotor).
General Electric Company: BPTO 2380 conforms to GE Spec. D50TF1-S4 Class B and is fully qualified for use in most GE models according to:
Honeywell/AlliedSignal: BPTO 2380 is approved for use in TPE-331, TSE 331 (Service Information Letter P331-2) and TFE-731 engines (Service Information Letter F731-11).
BPTO 2380 is approved for use in T-53 engines (Service Bulletin No. 36) and T-55 engines (Lycoming letter of Sept. 5, 1975). BPTO 2380 is also approved for ALF 502 engines (ALF 502 Maintenance Manual—Section 72-00- 00 page 12) and LF 507 engines (LF 507-1H Maintenance Manual—Section 72-00-00 page 23).
IAE International: BPTO 2380 is approved for the V2500 engine (IAE V2500 series documents IAE-0043 and IAE-0174).
Motorlet: BPTO 2380 is approved for the M601 engine (Motorlet letter dated Aug. 9, 1994).
Pratt & Whitney: BPTO 2380 is approved under specifica-tion PWA 521 (Service Bulletin No. 238) for use in all models of engines.
Pratt & Whitney Canada: BPTO 2380 is approved for use in all PT6, ST6, (Service Bulletin Nos. 1001, 3001, 4001, 5001, 9001, 10001, 11001, 12001 and 13001), JT15D (Service Bulletin No. 7001), PW100 series engines (S/B 20001), and PW300 series engines (S/B 2 4 0 0 1).
Rolls-Royce Ltd.: BPTO 2380 is fully approved for Spey models (Service Bulletin SP 12-8), for use in Avon models (Service Bulletin, AV 89-22), and for use in Gnome models H1400 and H1400-1 (Type Approval Certificate No. Gnome 4&5, respectively). BPTO 2380 is fully approved for the RB 211-524 models (Service Bulletin RB 211-12-5019) and RB 211-535C (Maintenance Manual M-211 (535)-B Section 12-13-01). BPTO 2380 is also approved for the RB 211-22B models (Service Bulletin RB 211-12-5019) and for Tay models (all Marks) (R-R letter dated 17 July 1986 and 24 May 1990). BPTO 2380 is approved for all GEM marks (R-R approval letter issue 3.1 March 1988).
Rolls-Royce/Allison Engine Company: BPTO 2380 is approved against EMS 53 and for use in 250, 501 and T56 series engines according to customer service letters:
BPTO 2380 is also approved for the AE 2100 and AE 3007 engine models.
Rolls-Royce/SNECMA: BPTO 2380 is approved for use in M.45H (Rolls-Royce letter of Dec. 4, 1975).
Rolls-Royce Turbomeca: BPTO 2380 is approved for Adour engines (Rolls-Royce Technical Instruction 28).
SNECMA: BPTO 2380 is fully approved for use in all Atar series engines (Technical document MTC No. 6015, latest edition), for the M53 engine (SNECMA letter dated 10/1/87), and for the M88-2 engine (SNECMA letter dated Nov. 21, 1995).
Turbomeca: BPTO 2380 is approved (Turbomeca letter to ESAF in 1994) for following engines:
Turbomeca—SNECMA: BPTO 2380 is approved for the Lazarc engines (SNECMA letter Nov. 18, 1975).
Carrier Corporation: BPTO 2380 is approved for use in Carrier Freon compressors (Carrier letter dated April 25, 1969 to Seaboard World Airlines).
Foote Brothers Company: BPTO 2380 is approved for gear box for JT3C-6 engines and for two-speed gear box on Electra aircraft.
General Electric Company: BPTO 2380 conforms to GE specification D50TF1-S4 class B and is approved for use in CSD Model 2CLKH40B9.
Lucas Aerospace Ltd.: BPTO 2380 is approved for the AE 8909 integrated drive generator in Concorde (Lucas Engineering Report CS 0284).
Microturbo: BPTO 2380 is approved for use in Saphir I, II, and III, and IV APU (Service Bulletin 49-10-07).
Normalair Ltd.: BPTO 2380 is approved and recommended for cold air unit (ref. Operator’s Manual).
Plessey Company Ltd.: BPTO 2380 is fully approved for use in CSDS units manufactured by the Plessey Company Ltd. (letter dated Sept. 18, 1970).
Pratt & Whitney Canada: BPTO 2380 is approved for use in the PW901A APU (Ref. Component Maintenance Manual APU part no. 3910001).
Rotax Ltd.: Approvals and approval procedures for Rotax Ltd. CSD units require discussion with manufacturer.
Solar: BPTO 2380 is approved for APU models T-62T- 25,-29,-39,-40 via its MIL-PRF-23699 approval.
Turbomeca: BPTO 2380 is approved for use in the AST 600 auzillary power unit (APU). It is approved as alternate (with restrictions) on the AST 950 APU. See applicable maintenance manuals.
Bell Helicopter Co.: BPTO 2380 is approved for use in engine, transmission, and tail rotor gear box of Models 206, 212, 214 and in engine and transmission of model 222 helicopter (Bell Materials Bulletin FW 1440C).
Sikorsky Aircraft Division: BPTO 2380 is approved for use in engine, intermediate gear box, and tail gear box of models S61L and S51N. (Sikorsky Notice To Commercial Operators 61-94).
FeaturesVISCOSITY: While most Type II synthetic turbo oils have essentially the same viscosity at 99°C (between 5 and 5.5 centistokes), BPTO 2380 is less viscous at very cold temperatures than other Type II oils. This offers a distinct advantage, which permits BPTO 2380 to be used in some critical applications where other Type II oils are excessively viscous. For example, at -40°C the viscosity of BPTO 2380 is well below that of competitive products.
VAPOR PHASE DEPOSITS: A major advantage of BPTO 2380 is its ability to limit vapor-phase deposits. With some competitive oils, heavy deposits have formed where the oil mist and vapors come in contact with hot engine surfaces resulting in migrating deposits.
LOAD CARRYING:BPTO 2380 provides load carrying ability, as measured in the Ryder Gear Test well in excess of requirements established by the engine and equipment manufacturers. Long life of bearings, gears, and other highly loaded lubricated surfaces is thus assured under normal operating conditions.
CLEANLINESS: Minimum formation of varnish or sludge deposits is one of the characteristic advantages of BPTO 2380. Long periods of operation are possible without the danger of scavenge pump screen plugging or the corrosion that often accompanies excessive deposits.
BULK STABILITY (resistance to physical or chemical change resulting from oxidation): The high degree of oxidation resistance of BPTO 2380 permits long periods of operation without significant increase in viscosity or total acidity, the two principal indicators of product oxidation. The need to change oil because of oxidation effects is rare when using BPTO 2380. Most users find it unnecessary to make oil changes in spite of occasional mechanical abnormalities that create unusually severe oxidizing conditions.
COMPATIBILITY: While considerable laboratory data is available to demonstrate the compatability of BPTO 2380 with metals, elastomers and other lubricants, the extensive airline experience most adequately demonstrates this property. Details are given in the section on Product Performance.
SEAL WEAR: Proper functioning of carbon seals is essential for the life of the engines that use this type of bearing compartment sealing arrangement. Poor seal performance may be caused by lubricant properties that promote (or fail to prevent) wear of the carbon at the carbon-to-steel face. BPTO 2380 has provided the dependable performance in numerous airlines that was predicted by extensive laboratory tests.