Honda calls it a "stay assy., tailgate open," p/n 74820-SCV-A01.
White lithium grease is probably safe to use. Be sure to lubricate the pivots at both ends, as it's just as likely to be squeaking from there as from the piston itself. Likewise the liftgate hinges.
White lithium grease is probably safe to use. Be sure to lubricate the pivots at both ends, as it's just as likely to be squeaking from there as from the piston itself. Likewise the liftgate hinges.