Lightning McQueen drives up to Tow Mater, and he’s
backfiring a lot, so Tow Mater says: “What’s the matter, bad gas?” And Lightning
McQueen says: “Yeah, I keep backfiring bad emissions.” And Tow Mater suggests
he try some Beano to prevent backfiring from bad gas.
(This wouldn’t work as well as an ad for Gas-X because cars
also run on gas.)