- Earthy (100% of reported flavors)
MB15 puts premium gas in a small package of letters. Short for Motorbreath #15, this cut comes from the Motorbreath seed line bred by Jimmy Nitz of Pisces Genetics, crossing Chem D with SFV OG. The number identifies a particular selection from that cross, giving the shorthand more meaning than a trimmed-down menu name.
Diesel comes through loud, backed by pine, earthy musk, and tart citrus peel. A little sweet-and-sour character rounds out the sharper chemical edge without taking the fuel out of the equation. This is the kind of flower where “gassy” earns its place in the description.
Grower descriptions point to rounded, densely packed green buds with a generous coating of trichomes. Orange to reddish pistils thread through the frost. The appeal is classic OG: resin, structure, and a nose that does most of the talking.
MB15 reportedly revs the head before dropping the body into low gear. An uplifting, euphoric start can give way to substantial physical relaxation, with some people describing a surprisingly clear head while the rest of them gets comfortable. Others report a hazier finish and sleepiness. The gas stays loud. Your plans may get quieter.
The original #15 selection circulates as a clone. Seeds sold under a similar name may produce related plants, but they do not automatically reproduce that exact cut. For growers chasing its particular expression, the starting stock matters.
Published grower and nursery flowering windows span roughly eight to ten weeks. One producer lists eight to nine weeks for its cut, while other clone listings allow nine to ten. Treat that as a working range rather than an exact harvest appointment.
Its dense flowers make airflow and moisture control practical priorities as the buds fill out. Dependable yield and height figures for the original selection are limited, so promises of a specific haul deserve more scrutiny than the name alone provides.
