Phillips 66 Type A Aviation Oil is an ashless dispersant, single-grade engine oil specially formulated for use in aircraft piston engines. 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 (nondispersant) mineral oils.
Type A Aviation Oil has many years of outstanding field performance in a wide variety of aviation applications. It is available in two grades, 100AD (SAE 50) and 120AD (SAE 60). Both grades are FAA approved.
Ashless dispersant helps minimize engine sludge and varnish deposits for a cleaner engine
High film strength for protection against wear and piston scuffing
Protects against rust and corrosion
Formulated with the same high-quality base oils as used in Phillips 66 X/C® Aviation Oil
Avco Lycoming Material Specification No. 301G
Pratt & Whitney 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
Opposed piston aircraft engines that require an SAE 50 or Commercial Grade 100 engine oil (Type A 100AD)
Radial piston aircraft engines that require an SAE 60 or Commercial Grade 120 engine oil (Type A 120AD)