Related Clues:

• Carbon fuel
• See 73-Across
• RC Cola alternative
• Product once advertised as 'Ice-cold sunshine'
• Concession stand purchase
• Soda brand
• Pepsi alternative
• __ Classic
• Rum partner
• Half-burnt coal
• Pepsi challenger
• "It's the real thing" soft drink
• Rival of 36-across
• Porous fuel
• Industrial fuel