Engine Requiring Special Fuel, Also Name of Fuel
This page is the CodyCross answer for the clue below from Water Park, Group 749, Puzzle 3 (Sweet Treats).
Question is: Engine Requiring Special Fuel, Also Name of Fuel
and the answer is: DIESEL
Word Meaning:
DIESEL — A fuel derived from petroleum (or other oils) but heavier than gasoline/petrol. Used to power diesel engines which burn this fuel using the heat produced when air is compressed.
Definitions from Wiktionary.