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Home / Engine Parts / Oil / Phillips 66 /Phillips 66 Victory Aviation Oil 20W-50
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Phillips 66 Victory Aviation Oil 20W-50

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Overview

Phillips 66® Victory AW 20W-50 Oil is an ashless dispersant, multi-grade engine oil specially formulated for year-round use in aircraft piston engines. Victory AW 20W-50 is pre-blended with the proper concentration of antiscuff/antiwear additive (LW-16702) mandated by Lycoming Service Bulletins 446E and 471B and Service Instruction 1409C. It provides distinct performance benefits compared with single-grade engine oils, including easier starting and faster oil circulation at low temperatures, reduced warm-up time, and reduced oil consumption in most engines. It maintains its film strength under high loads and at high temperatures to protect against wear and piston scuffing.

The ashless dispersant formulation helps minimize the formation of engine sludge, varnish, piston deposits and combustion chamber deposits, resulting in a much cleaner engine compared with the use of straight (non-dispersant) mineral oils.

Victory AW 20W-50 Aviation Oil is recommended for use in opposed piston engines. It can replace Commercial Grade 65, 80 or 100 single-grade engine oils with no sacrifice in performance.

Features

  • Ashless dispersant helps minimize engine sludge and varnish deposits for a cleaner engine
  • Pre-blended with Lycoming-approved antiwear additive
  • High film strength for protection against wear and piston scuffing
  • High viscosity index and low pour point for use over a wide temperature range
  • Protects against rust and corrosion
  • Formulated with the same high-quality base oils as used in Phillips 66 X/C® Aviation Oil

Specifications

  • SAE Grade: 20W-50
  • Gravity, °API: 30.1
  • Specific Gravity @ 60°F: 0.876
  • Density, lbs/gal @ 60°F: 7.29
  • Color, ASTM D1500: 2.5
  • Flash Point (COC), °C (°F): 235 (455)
  • Pour Point, °C (°F): -33 (-27)
  • Viscosity, Kinematic
  • cSt @ 40°C: 159
  • cSt @ 100°C: 19.8
  • Viscosity Index: 144
  • Cold Cranking Viscosity, cP: 5,200
  • @ (°C): (-15)
  • Acid Number, ASTM D664, mg KOH/g: 0.15
  • Ash Content, SAE J1787, wt %: Nil
  • Copper Corrosion, ASTM D130: Pass
  • Foam Test, ASTM D892: Pass

Approvals

  • Avco Lycoming Material Specification No. 301G
  • Pratt & Whitney Service Bulletin No. 1183 Rev. U
  • SAE Standard J1899
  • Teledyne Continental Material Specification MHS-24B
  • U.S. Military Specification MIL-L-22851D (obsolete) for additive treatment QPL
  • QPL approval number: D07L2-50

Documents

  • Frequently Purchased With
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Reviews

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Exactly as ordered. Thank you again!

Bill S Verified Purchase

Phillips Victory Aviation Oil 20W-50 12Quart Case
July 1, 2025

Switching to this oil has reduced oil consumption in my engine

Paul B Verified Purchase

Phillips Victory Aviation Oil 20W-50 12Quart Case
June 20, 2025

I use this one because it has the Lycoming Snake Oil already mixed in - But I still add Camguard.

Green-way E Verified Purchase

Phillips Victory Aviation Oil 20W-50 12Quart Case
May 31, 2025

Best oil for lycoming engines lowers oil consumption. Used aeroshell 100 plus but not anymore

Alan W Verified Purchase

Phillips Victory Aviation Oil 20W-50 12Quart Case
May 26, 2025

Great oil.

Robert K Verified Purchase

Phillips Victory Aviation Oil 20W-50 12Quart Case
May 17, 2025

Good stuff, a little expensive

Steve B Verified Purchase

Phillips Victory Aviation Oil 20W-50 12Quart Case
April 5, 2025

My 172 has always used this oil, no issues

Peter D Verified Purchase

Phillips Victory Aviation Oil 20W-50 12Quart Case
March 28, 2025

Arrived quickly as always and is exactly as described

Morris W Verified Purchase

Phillips Victory Aviation Oil 20W-50 12Quart Case
March 25, 2025

Product was perfect but the courier lost the first order. A second arrived safely…

James B Verified Purchase

Phillips Victory Aviation Oil 20W-50 Quart
February 12, 2025

Paul F Verified Purchase

Phillips Victory Aviation Oil 20W-50 12Quart Case
January 23, 2025

Q&A

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Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What is the difference between X/C Victory 20W50 and the old XC 20W50?

The Victory 20W-50 is pre-blended with the proper concentration of antiscuff/antiwear additive (LW-16702). Normal 20W-50 does not have this additive.

Q: I had Normal X/C 20w50 put in at the last oil and filter change. Can X/C Victory AW 20w50 safely be added as make up oil when needed?

The Victory oil can be mixed with the standard X/C. It is basically the same oil but with the LW-16702 additive included.

Q: Is Victory 20W50 mineral or synthetic?

It is mineral but has ashless dispersant and anti-wear additives. It is not a mineral break in type oil.

Q: Is the Victory available in a 4 gallon case, like the regular X/C?

No, 20W50 Victory is not available in the 4 gallon case.

Q: Can victory 20/50 be used with camguard?

Yes but Victory already has an additive that is similar to Camguard.

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