AeroShell Turbine Oil 390 Oil for turboprop engines

Specifications

Shell AeroShell Turbine Oil 390 can help improve the Auxiliary Power Unit starting reliability, especially on cold-soak starting. AeroShell Turbine Oil 390 has excellent low temperature properties. It can also used in aviation oil mixtures where this oil is mixed with piston engine oil. Turbine Oil 390 is a synthetic aviation oil for turbojet engines of various designs of auxiliary power plants.

This aviation oil can be used as an analogue of domestic oils VNII NP 50-1-4f, VNII NP 50-1-4u and 36 / 1Ku-A. Complies with the DEF STAN specification 91-94. AeroShell Turbine Oil 390 is a synthetic di-ester oil that includes carefully selected and balanced aviation oil additives to improve thermal and oxidative stability and increase the performance of the base oil. Turbine Oil 390 was developed as an improved version of the oil for old British turbojet engines.

More recently, due to the low temperature characteristics of AeroShell Oil 390, this aviation oil was used for auxiliary power plants (APUs). Shell AeroShell Turbine Oil 390 is a 3-cSt synthetic di-ester oil incorporating a carefully selected and balanced combination of additives to improve thermal and oxidation stability and to increase the load carrying capacity of the base oil. Products such as ASTO 390 are commonly used in the APUs of four-engine intercontinental aircraft, but are now being considered for use in twin-engine aircraft. If a main engine fails, you need to have confidence that your APU will start reliably.

An aircraft’s extended range twin operations (ETOPS) certification^ is partly based on the reliability of back-up systems such as the APU. In the event of engine failure, the APU must make up for any reduction in electrical power. APUs are typically shut down when cruising. During this time, the oil can be cooled to less than –40°C. At this temperature, the viscosity of standard 5-cSt oil increases to about 10,000 cSt. This causes a large viscous drag that may result in a hung start. ASTO 390, with its much smaller viscosity increase of typically 2,000 cSt at –40°C, can help to improve cold-soak start-up reliability and thus maximise ETOPS times, as it has significantly lower viscosity at cold-soak start-up temperatures (–40°C) than a standard 5-cSt oil.

A product review from a pilot user said: “This shell aviation oil is what I highly recommend for pilots with turbojet engines aircraft. I can say that it can improve the stability of the engine. I bought it at the nearest aviation oil outlet.”

Buy and price

To buy lubrication AeroShell Turbine Oil 390, terms and conditions of purchase, please contact our Sales department. Having excellent working qualities and reasonable price, AeroShell Turbine oils are actively used in aviation.

An aviation oil right for you turbojet engines. Turbine Oil 390 is set at a reasonable price at every aviation oil outlet.

Characteristics.

Properties	DEF STAN 91-94	AeroShell Turbine Oil 390
Oil type	-	Synthetic ester
Density @ 15°С, kg/l	-	924
Kinematic viscosity, mm2/s @ 40°С @ 100°С @ -54°С	16,0 max 4,0 min 13000 max	12,9 3,4 <13 000
Pourpoint, °С	-60 max	-68
Flashpoint, Cleveland Open Cup, °С	225 min	225
Foam characteristics	Must pass	Passes
Trace element content	Must pass	Passes
Elastomer compatibility, swell tests: - nitrile, % - viton, % - silicone, %	14 - 26 15 - 25 16 - 24	Within range Within range Within range
Solid particle contamination - sediment, mg/l - total ash of sediment, %	10 max 1 max	<10 <1
Corrosivity	Must pass	Passes
High temperature oxidative stability	Must pass	Passes
Load carrying ability	Report	Passes