Genetics: Jet Fuel Gelato x Runtz Description: The flavors of Jet Fuel Runtz are very pronounced and linger in the mouth for a long while. Users report tasting hints of cinnamon and a deep nuttiness followed by a gassy diesel from its' White Runtz genetics. Effects: Effects of Jet Fuel Runtz produces a large dose of relaxation and well-being, enjoying both mental and body relaxation. This strain is great for unwinding and preparing for a good night's rest because once it hits your system you may knock out for the rest of the night.