Mobil HyJet IVA plus

Approved by

• Airbus
• Cessna
• ATR
• Boeing

Standards & approvals

• SAE AS1241

  Fire-resistant phosphate-ester aircraft hydraulic fluid

  SAE Aerospace standard for fire-resistant phosphate-ester hydraulic fluids for commercial aircraft (Types IV/V).

• NSA 307110 Type IV

  Airbus NSA 307110 Type IV, Low Density (aviation hydraulic fluid)

  Airbus specification for phosphate-ester aviation hydraulic fluids, Type IV low density, for Airbus aircraft hydraulic systems.

• A2MS 564-003 Type IV

  Airbus Canada A2MS 564-003 Type IV (aviation hydraulic fluid)

  Airbus Canada specification for phosphate-ester aviation hydraulic fluids, Type IV, Class I, Grade A.

• Boeing BMS 3-11P Type IV

  Boeing BMS 3-11P Type IV (low density)

  Boeing specification for phosphate-ester, fire-resistant aircraft hydraulic fluids, Type IV. Applies to the hydraulic systems of Boeing aircraft.

Specifications

Brand

Mobil (ExxonMobil)

Range

Mobil HyJet

Category

Aviation hydraulic fluids

Manufacturer code

201550303010

Availability

On request

Typical characteristics

Manufacturer's description

Mobil HyJet IV-A Plus is a fire-resistant, phosphate ester hydraulic fluid engineered for commercial aircraft hydraulic systems. As the best-performing Type IV fluid available, it approaches many of the capabilities of Type V fluids — including high-temperature stability, long fluid life, density and rust protection — while remaining fully compatible in all proportions with other Type IV and Type V phosphate ester aviation hydraulic fluids. Key benefits include the best high-temperature stability among Type IV fluids combined with the lowest density in its class, reducing maintenance costs, aircraft weight and fuel consumption. The fluid also offers effective rust protection, excellent low-temperature viscosity, strong deposit control and excellent resistance to electro-chemical corrosion, protecting servo valves and pumps and extending equipment life. Mobil HyJet IV-A Plus meets SAE AS1241D, Type IV, Class 1 (low density), and is approved by all major aircraft manufacturers — including Airbus, Boeing, Embraer, Fokker, Gulfstream, Lockheed, ATR, Cessna and BAE/Avro — and appears on their Qualified Products Lists, making it suitable as a fleet-wide hydraulic fluid for airline operators.

Applications

• Mobil HyJet IV-A plus fire-resistant aviation hydraulic fluid is used in commercial aircraft hydraulic systems where phosphate ester hydraulic fluids are recommended.
• Compatible in all proportions with commercial Type IV and Type V phosphate ester aviation hydraulic fluids.
• Meets or exceeds the relevant industry and aircraft builder specifications, and is approved against all commercial aircraft manufacturer requirements, being included in their Qualified Products Lists.

Performance & benefits

• Best in high-temperature stability among Type IV fluids, reducing the need to replace fluid due to degradation and lowering hydraulic system maintenance costs.
• Lowest-density Type IV fluid, reducing the weight of hydraulic fluid carried by the aircraft and contributing to lower fuel consumption and operating costs.
• Effective rust protection, reducing the risk of equipment damage in the event of major water contamination.
• Excellent low-temperature flow (viscosity) properties, providing precise hydraulic system control and response even during extended-range or polar flights.
• Excellent deposit control, extending equipment life and reducing maintenance costs.
• Excellent protection against electro-chemical corrosion (erosion), protecting servo valves and pumps against damage.
• Approved by all major aircraft manufacturers, which allows its use as a fleet lubricant by airline operators.
• Fully compatible with all approved phosphate ester hydraulic fluids, giving airline operators flexibility in use.