Take Deep Chunk, an original Afghani indica, cross it with the sativa classic, and you get Chunky Diesel, a sativa-dominant hybrid with a clear head high that's perfect for daytime chores.
The exact ratio of sativa to indica in this strain is unknown, and the same goes for THC and CBD content. Indeed, it's hard to learn much of anything about this decided rarity. But it's probably best used for mood disorders and anxiety. It's not especially recommended for its CBD content, so it doesn't work well on seizure disorders or other conditions that respond to CBD.
On the other hand, the THC seems to be plentiful enough to make this an effective medical strain for some patients. Chunky Diesel has a chocolate flavor, with hints of its diesel origins present in both the taste and aroma. The bud is bright and dark green, with strands of brown and a thin, frosty layer of trichomes. The high is clear and focused, energetic and happy.
This strain is probably easier to find on the West Coast, though it isn't terribly well known even there.