Phillips 66 Victory AW 20w-50 Aviation Engine Oil

Phillips 66 Aviation

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$89.07 - $1,388.00
0.00 LBS

Phillips 66 Victory AW 20W-50 Aviation Oil is an ash-less 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 the anti-scuff/anti-wear Lycoming 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 ash-less 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 20W50 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. 

Specifications & Approval Requirements: 

  • Avco Lycoming Service Instruction 1014 
  • 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 Approval Numbers


  • Ash-less dispersant helps minimize engine sludge and varnish deposits for a cleaner engine 
  • Pre-blended with Lycoming-approved anti-wear additive 
  • Easier starting and faster oil circulation at low temperatures compared with single-grade oils
  • Reduced warm-up time and cooler operating temperatures compared with single-grade oils
  • High film strength for protection against wear and piston scuffing, even under high-load conditions, such as takeoff, and at elevated operating temperatures
  • Protects against rust and corrosion
  • Reduces oil consumption in most engines
  • Suitable for year-round use 

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