AeroShell Turbine Oil 308 is a 3 mm2/s synthetic ester oil incorporating additives to improve resistance to oxidation and corrosion and to minimise wear.
AeroShell Turbine Oil 308 was developed specifically for use in particular models of aircraft turbo-prop and turbo-jet engines for which a MIL-PRF-7808 (formerly MIL-L-7808) oil is required.
AeroShell Turbine Oil 308 contains a synthetic ester oil and should not be used in contact with incompatible seal materials and it also affects some paints and plastics.
Approvals/References/Specification
Joint Service Designation Specification: OX-9 NATO Specification: O-148 US Military Specification: MIL-L-7808 US Military Specification: MIL-PRF-7808L Grade 3
PROPERTIES | MIL-PRF-7808L Grade 3 | TYPICAL | Oil type | Synthetic ester | Synthetic ester | Kinematic viscosity mm2/s @ 100°C @ 40°C @ -40°C @ -51°C | 3.0 min 11.5 min N/A 17,000 max | 3.1 12.0 2400 12,000 | Flashpoint Cleveland Open Cup °C | 210 min | 235 | Pourpoint °C | N/A | Below -62 | Total Acidity mgKOH/g | 0.3 max | 0.15 | Viscosity stability | Must pass | Passes | Trace metal content | Must pass | Passes | Evaporation 6.5 hrs @ 205°C % m | 30 max | 20 | Ash % m/m | 0.01 | 0.001 | Silver - bronze corrosion @ 232°C -silver gm/m2 -bronze gm/m2 | +/- 4.5 max +/- 4.5 max | 0.01 0.05 | Deposit Test -deposit rating -neutralization number change % -viscosity change @ 40°C % | 1.5 max 20 max 100 max | 0.08 2.0 12.0 | Storage stability | Must pass | Passes | Compatability | Must pass | Passes | |
Safety Data Sheet