Gas __, It Doesn't Do Many Miles to the Gallon

This page is the CodyCross answer for the clue below from House of Horrors, Group 1118, Puzzle 4 (Hungry Zombies).

Question is: Gas __, It Doesn't Do Many Miles to the Gallon

and the answer is: GUZZLER

Word Meaning:

GUZZLER — Somebody or something which guzzles.

Definitions from Wiktionary.