Purple Octane. 

Purple Octane is a marijuana strain from top breeder turned licensed grower Seed Junky Genetics. Seed Junky drilled down into the purple and the gas in the GSC/Gelato family. Purple Octane is a cross of (Biscotti x Sherb BX1) x (Jealousy F2). It’s got a deep purple look, intense grape fuel aroma and maximum-THC indica hybrid effects.