Sour Diesel can climb up to 30% THC in some cases, but most batches hold about 20%. Additionally, Sour Diesel contains less than 1% CBD, leaving you with a pure THC-induced high. Photo by Julia Daigle The most apparent and obvious characteristic of Sour Diesel is by far the distinctive aroma and flavor https://lamotagrow.com/does-sour-diesel-smell-like-gas/ The hallmark of Sour Diesel is its pungent petrol-like smell that clings to the buds and lingers in the air after you've lit one up. Where the "sour" part comes into play is open to interpretation and will depend on your own unique sense of smell. The stronger the aroma when opening up a bag of Sour Diesel, the better.