Road Trip Expense Crossword Clue — 3 Letters

One confident answer with explanation of the wordplay

GAS

Best match

G

A

S

A "road trip expense" of 3 letters is almost certainly GAS (gasoline), which is a primary and common cost associated with any road trip.

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Other possible answers

TOLToll roads are another road trip expense, but TOL is not a standard word.

INNLodging (an inn) is a road trip expense, 3 letters, plausible alternative.

OILOil (as in motor oil) is a vehicle-related expense, though less directly tied to 'road trip.'

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