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Phillips 66 Type M Aviation Oil 20w-50 is an ashless, nondispersant,
multigrade engine oil recommended for use in aircraft piston engines
where the operator prefers a mineral oil-based engine oil that does not
contain dispersant additives. Phillips 66 Type M Aviation Oil 20w-50
provides easier starting and quicker oil circulation at low temperatures
compared with single-grade mineral oils, while maintaining high film
strength at high temperatures and under high loads for protection
against wear and piston scuffing. Phillips 66 Type M Aviation Oil 20w-50
is available in one viscosity grade: SAE 20W-50. Phillips 66 Type M
Aviation Oil 20w-50 typically is used as break-in oil for newly
overhauled engines where all-mineral type oils are recommended. The
multigrade formulation helps reduce cylinder glazing tendency during
break-in. Break-in normally is accomplished in less than 25 hours of
engine operation.
