Double Diesel is a high grade medicinal strain that is yet another quality bud to come from the Diesel family. Genetics are Sour Diesel X New York City Diesel. Double Diesel would seem harsh with the combination of the two diesels, but it comes across as surprisingly sweet and musky with a menthol citrus theme throughout. Double Diesel has the same quick, head hitting high and smooth, thick smoke that you would expect from a Diesel. Double Diesel intense headiness of the initial hit will lead to a focused, mentally relaxed state with not too much of a crash. Double Diesel Sativa dominant strain also provides long lasting relief with patients reporting highs lasting 3-5 hours while still getting work done. Growing Double Diesel Marijuana Has Medical Benefits.