Chevron in downtown San Diego dispenses Techron-additive gasoline in regular, midgrade, premium, diesel, and E85 flex-fuel grades from its First Avenue station near the I-5 South on-ramp. Drivers heading south on I-5 pair a fill-up at the First Avenue pumps with scheduled oil changes and fluid services at Advanced Auto Tech, combining fuel and maintenance into a single downtown stop. The ExtraMile convenience store stocks grab-and-go food, beer, wine, and lottery tickets behind the fuel island, with propane-tank exchange available at the lot perimeter. The station's First Avenue position places it between the Balboa Park corridor to the north and the core downtown grid to the south, serving both park visitors and Gaslamp Quarter traffic. Collision-damaged vehicles awaiting body-panel replacement at Fix Auto Downtown SD frequently refuel at the First Avenue pumps en route to and from the shop's intake bay. The E85 flex-fuel pump serves the growing segment of flex-fuel-compatible trucks and fleet vehicles operating in the downtown corridor, a grade that few competing downtown stations carry.