Our Product Catalogue

Home » Gilco Products » Product

Phillips 66 X/C Aviation SAE 20W-50

Posted: Aug 31, 2010 1:15 PM
Updated: Jan 18, 2014 3:32 PM

Click here for PHILLIPS 66 20w50.PDF MSDS       

Click here for Phillips 66 XC 20w50.pdf Spec Sheet



PHILLIPS 66 X/C AVIATION OIL 20W50 X/C oils provide ease of starting and quick lubrication under low temperature conditions. Provides film strength and low wear under high temperature conditions. Provides protection against engine deposits, ring groove carbon, piston lacquer, crankcase sludge and oil oxidation. PHILLIPS 66 is a dispersant that keeps your engine clean.  X/C oil meets Avco-Lycoming & Teledyne Continental engine specifications.   Sold in 12 quarts per case.

Phillips 66 XC Oil works in all weather conditions.

A multi-viscosity oil is one that has been tested at hot and cold temperatures. Multiviscosity oil is formulated by mixing oil with a cold-weather viscosity and oil with a warm-weather viscosity, to which polymers are added. This process allows the oil to function across a wide range of temperatures. This versatility makes multi viscosity oils, like the Phillips 66 XC Oil, ideal for all-season use.

  • Ashless dispersant helps minimize engine sludge and varnish deposits for a cleaner engine
  • Easier starting and faster oil circulation at low temperatures compared to single grade oils
  • Reduced warm-up time and cooler operating temperatures compared to 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
  • Provides cleaner and quicker break-in than traditional all-mineral, non-additized, single-grade oils
  • Protects against rust and corrosion
  • Reduces oil consumption in most engines
  • Suitable for year-round use

    PHILLIPS 66 X/C® Aviation Oil meets the requirements of:
  • Avco Lycoming Material Specification No. 301G
  • Pratt & Whitney Bulletin No. 1183 "U"
  • SAE Standard J1899
  • Teledyne Continental Material Specification MHS-24B
  • U.S. Military Specification MIL-L-22851D for additive treatment
  • QPL Approval Numbers: D07L1-20W-50 and D07L1-25W-60


  • SAE Grade: 20W-50
  • Gravity °API: 30.1
  • Density, g/cm3 @ 15.6°C (60°F): 0.876
  • Color, ASTM D1500: 2.5
  • Flash Point (COC), °C (°F): 235 (455)
  • Pour Point, °C (°F): -33 (-27)
  • 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