The Leaf Index
Vol. IA field guide to cannabis cultivarsleafly.cc
No. 1635Sativa

Supreme Diesel

Sour Diesel × OG Kush (possible) × Chem Dawg (possible)

Supreme Diesel is a sativa-leaning hybrid celebrated for its fast-acting cerebral energy and prominent diesel-fuel aroma, often finishing with a sour-citrus note. Commonly testing between 20-25% THC, this cultivar is considered a high-potency option suitable for daytime use.

May help withFocus Uplift
AromaDieselCitrusEarthyFloralGrapeGrapefruitHerbal

Appearance

Supreme Diesel plants typically exhibit a medium-tall, sativa-dominant structure with elongated branches. The flowers often form spear-like colas with pointed, fox-tailed calyces, a characteristic common in the Diesel family. Its calyx-to-leaf ratio is favorable, simplifying the trimming process. Mature buds are generally jade to lime-green, accented by rust-colored pistils, and heavily frosted with trichomes.

Aroma & Flavor

The aroma of Supreme Diesel is primarily defined by pungent fuel notes, layered with sour citrus and a subtle mineral tang. Initial scents on the stem-rub include astringent solvent-like qualities, followed by lemon-lime zest and a faint herbal undertone. Some phenotypes may develop a sweet, bakery-like aroma during late flower. The flavor profile mirrors the aroma, offering a distinct sour-citrus finish alongside diesel and earthy notes.

Effects

This sativa-leaning hybrid is sought after for its rapid onset of cerebral energy, typically appearing within 2-5 minutes and peaking around 20-30 minutes. The effects are known to be uplifting and focus-enhancing, providing sensory brightness that lasts for 2-3 hours. While primarily energetic and cerebral, some users report a subsequent sleepy sensation.

Terpenes & Cannabinoids

Supreme Diesel commonly tests between 20-25% THC, positioning it as a high-potency strain. The terpene profile is often anchored by limonene, myrcene, and beta-caryophyllene, with total terpene content ranging from 1.5-3.0% by weight in well-cultivated flower. Other terpenes frequently present include ocimene, humulene, and pinene, contributing to the complex aroma and effects. CBD content is typically less than 1%.

Growing

Growers appreciate Supreme Diesel for its vigorous vertical growth and a high calyx-to-leaf ratio, which aids in trimming. Indoor yields can range from 450-600 g/m², while outdoor plants may produce 600-900 grams per plant in suitable climates. Most phenotypes complete flowering in 63-70 days. The plant responds well to common cultivation techniques like topping and LST.

Origins & Lineage

Emerging from the East Coast Diesel derivatives of the late 1990s and early 2000s, Supreme Diesel is often described as a sativa-dominant hybrid within the Diesel family. While exact origins vary, lineage notes frequently trace it to a Sour Diesel foundation, sometimes stabilized for enhanced fuel aroma and denser buds. Other hypotheses suggest a Diesel cross with an OG Kush or Chem Dawg lineage, aiming to combine the energetic lift of Diesel with a slightly increased body presence.

Frequently asked questions

What is Supreme Diesel?
Supreme Diesel is a sativa-leaning hybrid strain known for its energetic, cerebral effects and a distinctive diesel-citrus aroma.
What are the common THC levels for Supreme Diesel?
Batches of Supreme Diesel commonly test between 20-25% THC, with some falling between 18-27%.
What does Supreme Diesel smell and taste like?
It is characterized by a pungent fuel aroma, often accompanied by sour citrus notes. The flavor profile typically features diesel, citrus, and earthy undertones.
What are the primary terpenes in Supreme Diesel?
The terpene profile is often dominated by limonene, myrcene, and beta-caryophyllene, contributing to its aroma and effects.