Phillips 66 Type M Aviation Oil is an ashless, nondispersant, multigrade engine oil recommended for use in aircraft piston engines where the operator prefers mineral-based engine oil that does not contain any dispersant additives. It provides easier starting and quicker oil circulation at low temperatures compared to single-grade mineral oils, while maintaining high-film strength for protection under high-temperature and high-load operations that can help reduce cylinder glazing tendencies.
Type M Aviation Oil typically is used as break-in oil for newly overhauled engines where all-mineral type oils are recommended. Break-in normally is accomplished in less than 25 hours of engine operation.
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