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HomeShop SuppliesOilMultigrade Piston OilAeroShell™ Oil W 15W-50 Multiviscosity Aircraft Engine OilAeroShell™ Oil 550041165 15W-50 Multi-grade Aircraft Oil - Quart (946 mL) Bottle
AeroShell™ Oil 550041165 15W-50 Multi-grade Aircraft Oil - Quart (946 mL) Bottle
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AeroShell™ Oil 550041165 15W-50 Multi-grade Aircraft Oil - Quart (946 mL) Bottle

Part#: 550041165Q
Our Price: $8.61
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Material Safety Data Sheet: MSDS1
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AeroShell Oil W 15W-50 was developed in co-operation with Textron Lycoming and Continental Motors and conforms to their specifications 301F and MHS-24A respectively. This oil is also approved under Military Specification MIL-L-22851 which is now obsoleteand has been replaced by the SAE J-1899 specification. AeroShell Oil W 15W-50 is also approved for use in all Pratt & Whitney radial aircraft engines. In addition AeroShell Oil W 15W-50 meets the provisions of Lycoming Service Bulletin 446C and 471, plus ServiceInstruction 1409A and meets the American FAA Airworthiness Directive 80-04-03 which specifies special anti-wear requirements for certain engine models.

AeroShell Oil W 15W-50 already contains, in the correct proportions, an anti-wear additive equivalent to the Lycoming additive LW 16702; operators who use AeroShell Oil W 15W50 DO NOT need to add this Lycoming additive to the oil.

AeroShell Oil W 15W-50 is qualified for use in all Continental Motors' liquid cooled and air cooled aircraft piston engines.


  • Continental Specification: MHS 24A
  • Continental Specification: SIL 99-2
  • FAA Specification: Airworthiness Directive 80-04-03 R2
  • Pratt & Whitney Specification: Service Bulletin 1183-S
  • SAE Specification: approved SAE J-1899 Grade Multigrade
  • Textron Lycoming Specification: 301F
  • Textron Lycoming Specification: Service Bulletins 446E and 471B
  • Textron Lycoming Specification: Service Instruction 1409C
  • four-stroke cycle certificated aircraft reciprocating piston engines, including fuel-injected and turbocharged
  • Most Lycoming and Continental opposed aircraft engines operated over a wide range of ambient temperatures
  • Pratt and Whitney radial aircraft engines
  • Teledyne Continental Motors liquid cooled aircraft piston engines
  • NOTE: AeroShell Oil W 15W-50 should not be used for break-in where channel chrome cylinders are being used or in helicopters that use a common sump for the engine and transmission.

    Product Details
    UOM : Each
    Size : Quart
    Ship Dimensions : 4 x 3 x 9 inches
    Shipping Weight : 1.9 pounds
    Manufacturer P/N : 550041165
    UPC : 021400401037
    EAN : 0021400401037
    ECCN : EAR99
    Schedule B Code : 2710.19.3010
    Alt. P/Ns : 15W50CASE 15W-50 15W50
    Disclaimer: While reasonable efforts have been made to ensure all information on this website is accurate, and Styles Logistics, Inc. do not assume responsibility for any errors or omissions. All specifications, illustrations, data and prices are subject to change without notice.
  • low temperature startability and pumpability
  • \r\n
  • excellent anti-wear and anti-corrosion protection
  • \r\n
  • outstanding high temperature oxidation protection for hot running engines
  • \r\n
  • designed to keep engines cleaner with less sludge and varnish buildup in \r\ncritical ring belt and other vital areas
  • \r\n
  • completely compatible with AeroShell Oil W Single Grades and AeroShell \r\nmineral oils
  • \r\n
  • superior protection for critical camshafts, lifters and other high wear components
  • \r\n
  • best all around low temperature performance
  • \r\n
  • oil pressures and temperatures equal to that of single grade 100 oils at \r\nfully warmed up conditions
  • \r\n
  • unsurpassed high temperature performance
  • Specifications
  • the former MIL-L-22851
  • SAE J-1899
  • approved for use in all Pratt and Whitney radial aircraft engines
  • Lycoming Service Bulletin 446C and 471, plus Service Instruction 1409A
  • FAA Airworthiness Directive 80-04-03
  • qualified in all Teledyne Continental Motors liquid and air-cooled aircraft piston engines.
  • Oil Type: Mixed synthetic hydrocarbon and mineral
  • SAE Viscosity Grade: Multigrade
  • Color ASTM: 4.0
  • Density @ 15° C kg/l: 0.86
    Kinematic Viscosity mm2/s
  • @ 100° C: 19.6
  • @ 40° C: 122
  • Viscosity Index: 160
  • Pourpoint ° C: –36
  • Flashpoint Cleveland Open Cup ° C: 238
  • Total Acidity mgKOH/g: 0.01
  • Carbon Residue Ramsbottom % m: 0.14
  • Sulphur % m: 0.1

    Copper Corrosion

  • 3 hrs @ 100°C: 1
  • 3 hrs @ 205°C: 2
  • Ash content % m: 0.0006
  • Trace sediment: Passes
  • Foaming tendency: Passes

    Elastomer Compatibility

  • AMS 3217/1 72 hrs @ 70° C swell %: Passes
  • AMS 3217/4 72 hrs @ 150° C swell %: Passes
  • Trace metal content: Passes
  • Compatibility: Passes
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