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AeroShell Turbine Oil 308 Synthetic Turbine Engine Oil

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

Specifications

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

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AeroShell Turbine Oil 308 Synthetic Turbine Engine Oil

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