Exxon Aviation Oil Elite™ 20W-50
Exxon Aviation Oil Elite™ 20W-50 is a premium quality, semi-synthetic, ashless-dispersant aviation piston engine oil. It is formulated from select, highly refined mineral base oils, a polyalphaolefin synthetic base oil, and ashless performance additives providing outstanding engine cleanliness, wear protection, and corrosion protection.
Exxon Aviation Oil Elite 20W-50 is designed to satisfy all opposed piston engine manufacturers’ requirements under a wide range of climatic conditions. It provides:
- Excellent engine cleanliness
- Outstanding protection against wear, rust and corrosion
- Better cold-start protection and a stronger lubricant film in typical operating temperatures, compared to mono-grade oil
- Compatibility with all commercial aviation piston-engine oils
Product information
Data sheets
Controlling rust and wear in piston engines
This tech topic explores different types of lubricants, how they protect piston engines and the role they play in extending engine life.
Learn moreFeatures and Benefits
Extensive laboratory, engine rig and flight evaluation tests have demonstrated the excellent performance of Exxon Aviation Oil Elite 20W-50. Key features and potential benefits include the following.
|
Features |
Advantages and Potential Benefits |
|
High level of rust and corrosion protection |
Extends the life of critical engine parts |
|
Excellent wear protection |
Long engine life |
|
High oxidation and thermal stability |
Minimizes deposits and extends engine life |
|
Powerful dispersancy |
Keeps engine parts, turbocharger bearings, propeller hub and dome, etc. clean of harmful sludge and varnish deposits |
|
High Viscosity Index |
Provides easy starting and fast lubrication of critical engine parts under low temperature conditions as well as high lubricant film strength and low wear under high temperature operating conditions |
|
20W-50 Multi-grade |
Year-round lubricant for most climates |
|
Compatible with all commercial aviation piston engine oils - both non-dispersant and ashless dispersant type |
Flexibility in use |
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Contains the Lycoming anti-wear/anti-scuffing additive |
Compliance with FAA airworthiness directive AD 80-04-03-R2 par.b.1 |
Applications
Exxon Aviation Oil Elite 20W-50 is U.S. Military approved under SAE J1899, which replaced MIL-L-22851D and is listed in the U.S. Military Qualified Products List QPL-1899. It is approved by and included in the Qualified Products Lists of Teledyne Continental, and Textron Lycoming and it is designed to satisfy the requirements of all opposed piston engine manufacturers. It provides an alternate means of compliance with FAA AD 80-04-03-R2 par.b.1.
New or newly overhauled aircraft engines should be broken in according to the engine builder's recommended procedure. Many engine manufacturers advise running in on straight mineral oils for the first 25 to 50 hours of operation. In all cases, however, the engine manufacturers recommendations should be followed, since the run in procedure can vary from engine to engine.
Exxon Aviation Oil Elite is compatible with non-dispersant mineral oils as well as other ashless-dispersant oils that meet the requirements of MIL-L-22851D/SAE J1899. It can also be used in high-time engines that have previously used a straight mineral oil. In this case it is advisable to carry out the oil-screen inspection recommended by the engine manufacturer.
Specifications and Approvals
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This product has the following approvals: |
|
SAE J1899 |
|
This product meets or exceeds the requirements of: |
|
Continental Motors, Inc.MHS 24 |
|
Textron Lycoming301F |
Properties and Specifications
|
Property |
|
|
Grade |
SAE 20W-50 |
|
Acid Number, mgKOH/g, ASTM D664 |
0.45 |
|
API Gravity, °API, ASTM D4052 |
29.6 |
|
Ash, mass%, ASTM D482 |
NIL |
|
Cold-Cranking Simulator, Apparent Viscosity @ -15 C, mPa.s, ASTM D5293 |
7200 |
|
Copper Strip Corrosion, 3 h, 100 C, Rating, ASTM D130 |
1A |
|
Copper Strip Corrosion, 3 h, 204 C, Rating, ASTM D130 |
2C |
|
Density @ 15.6 C, g/ml, ASTM D4052 |
7.3 |
|
Flash Point, Cleveland Open Cup, °C, ASTM D92 |
260 |
|
Foam, Sequence I, Stability, ml, ASTM D892 |
0 |
|
Foam, Sequence I, Tendency, ml, ASTM D892 |
0 |
|
Foam, Sequence II, Stability, ml, ASTM D892 |
0 |
|
Foam, Sequence II, Tendency, ml, ASTM D892 |
10 |
|
Foam, Sequence III, Stability, ml, ASTM D892 |
0 |
|
Foam, Sequence III, Tendency, ml, ASTM D892 |
0 |
|
Hi-Temp Hi-Shear Viscosity @ 150 C, mPa.s, ASTM D4683 |
5.4 |
|
Kinematic Viscosity @ 100 C, mm2/s, ASTM D445 |
20.6 |
|
Kinematic Viscosity @ 40 C, mm2/s, ASTM D445 |
182 |
|
Pour Point, °C, ASTM D97 |
-26 |
|
Sulfur, mass%, ASTM D2622 |
0.5 |
|
Viscosity Index, ASTM D2270 |
133 |
Health and safety
Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @ http://www.msds.exxonmobil.com/psims/psims.aspx
- Wear protection
- Corrosion protection
- Rust protection
- Severe operating conditions
- High/Low temperature viscosity
- Ashless
- MIL-L-22851D/SAE J1899
- Teledyne Continental Motors (MHS 24)
- Textron Lycoming Spec No 301F
-
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