Answer:

gassed

Answer	Crossword Clue
GASSED	Filled up an RV
GASSED	Filled (up) the tank
GASSED	Filled (up)

GASSED	Tanked (up)
GASSED	Talked garrulously.
GASSED	Yakked
GASSED	Gossiped
GASSED	Put under
GASSED	Blotto
GASSED	Pooped
GASSED	Prepared for a long drive, with "up"

GASSED	Fueled (up)
GASSED	Intoxicated: sl.
GASSED	Completely exhausted, in old slang