X/C® AviationOil
Phillips66® X/C Aviation Oil is an ashlessdispersant, multi-grade engine oil
specially formulated foryear-round use in aircraft piston engines. It provides
distinct performance benefitscompared with single-grade engine oils, including
easier starting and fasteroil circulation at low temperatures, reduced warm-up
time, and reduced oilconsumption in most engines. It maintains its filmstrength
under high loads and at hightemperatures to protect against wear and piston
scuffing. The ashlessdispersant formulation helps minimize the formation of
engine sludge, varnish,piston deposits and combustion chamber deposits,
resulting in a much cleanerengine compared with the use of straight (non-
dispersant) mineraloils.

X/C Aviation Oil was thefirst FAA-approved mineral oil-based, ashless
dispersant, multi-viscosityaviation engine oil. It has more than 30 years of
outstanding, provenperformance in a wide variety of aviation uses,including
flight schools, charter andcargo airlines, acrobatic aircraft, spray planes,
race planes and virtually anyother general aviation application. It is available
throughout the United Statesand is exported to other countries around the world.

Applications
X/C 20W-50 Aviation Oil isrecommended for use in opposed piston engines. It
can replace Commercial Grade65, 80 or 100 single-grade engine oils with no
sacrifice inperformance.

X/C 25W-60 Aviation Oil isrecommended for use in radial piston engines and
in other aviation pistonengines originally designed to run on heavier-gradeoils,
such as Commercial Grade120.

Both viscosity grades arerecommended for use during break-in and then as the
operational oil untilTBO.

X/C Aviation Oil meets the requirements of:
? Avco Lycoming MaterialSpecification No. 301G
? Pratt & Whitney ServiceBulletin No. 1183 Rev. U
? SAE StandardJ1899
? Teledyne ContinentalMaterial Specification MHS-24B
? U.S. Military SpecificationMIL-L-22851D (obsolete) for additive treatment
QPL Approval Numbers:D07L1-20W-50 (X/C 20W-50), D07L1-25W-60
(X/C 25W-60)X/C® AviationOil

Features/Benefits
? Ashless dispersant helpsminimize engine sludge and varnish deposits for a cleanerengine
? Easier starting and fasteroil circulation at low temperatures compared with single-gradeoils
? Reduced warm-up time andcooler operating temperatures compared with single-gradeoils
? High film strength forprotection against wear and piston scuffing, even underhigh-load
conditions, such as takeoff,and at elevated operating temperatures
? Provides cleaner andquicker break-in than traditional all-mineral, non-additized,single-grade oils
? Protects against rust andcorrosion
? Reduces oil consumption inmost engines
? Suitable for year-rounduse