X/C 20W-50 is the first approved multiviscosity aviation oil for opposed piston engines and provides better engine performance than any single-grade oil in all weather conditions. X/C 20W-50 is recommended for break-in, providing a cleaner and quicker break-in than traditional all mineral single grade oils. Plus X/C is an operational oil so there is no need to switch oils after break-in.
Specially formulated for year-round use in aircraft piston engines
Ashless dispersant, helping minimize engine sludge, varnish, piston deposits and combustion chamber deposits
Easier starting and faster oil circulation at low temperatures
Reduced warm-up time
Reduced oil consumption in most engines
Maintains film strength under high loads and at high temperatures
Utilizes all petroleum base oils to provide excellent solvency and prevent lead and lead salts