Phillips 66 X/C

X/C 20W-50 is the first approved multiviscosity aviation oil for opposed piston engines and can be used year-round and in all weather conditions.

Recommended for both break-in and everyday operation, it provides easier starts, quicker flow of oil to critical engine parts, and better engine performance than any traditional all-mineral singlegrade oil.

X/C 20W-50 is formulated with an ashless dispersant package for cleaner engine operation.

It meets the SAE J1899 specification, as well as MIL-22851-D.

Applications: All opposed piston engines