STD

STD is a company in Grand Theft Auto: San Andreas, their calendar can be seen in the Doherty Garage during cut scenes, namely Wear Flowers in Your Hair and Deconstruction. What their field of business is is not known but judging by their slogan "get some in your tanks today" on the calender and its location in a garage, it is assumed STD is a fuel company.

Trivia

 * 'STD' stands for sexually transmitted disease.
 * The company shares its name with STD Contractors in Grand Theft Auto V, it is not known if both are related.