AeroShell Oil 100W Plus Single Grade Aviation Oil Case of 6 (1 Qt) btpcat_other_357281995 travel trailers travel trailers Outstanding wear protection: Shell Corena S2 P helps provide effective protection of internal metal surfaces from corrosion and wear to help prolong the life of critical parts such as bearings and pistons It combines high performance single grade ashless dispersant oil with the anti wear and anti corrosion additives of their multigrade oil AeroShell Oil W100 Plus and W80 Plus already contain the Lycoming additive LW 16702 in the correct proportions and meets Lycoming requirements as well as the US Federal Aviation Authority Airworthiness directive 80 04 03