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Phillips 66® X/C Aviation Oil is an ashless dispersant, multi-grade engine oil specially formulated for year-round use in aircraft piston engines. 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.


X/C 25W-60 Aviation Oil is recommended for use in radial piston engines and in other aviation piston engines originally designed to run on heavier-grade oils, such as Commercial Grade 120. It is recommended for use during break-in and then as the operational oil until TBO.


  • 2 X 9.46 L
  • 4 X 3.78 L
  • 4 X 3.78 L
  • 12 X .946
  • 1 X 208.2 L

Available in regions

  • Quebec/East
  • Ontario

Technical Documents

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