Diesel and unleaded fuel distribution in La Mesa's Casa de Oro district runs through the 7-Eleven Fuel station at 4610 Avocado Boulevard, positioned along the commercial corridor south of Mt Helix Park. Fleet and rental vehicles cycling through agencies like Thrifty rely on this Avocado Boulevard location for consistent diesel availability in the 91941 ZIP code. 7-Eleven's national fuel program channels branded and unbranded fuel blends to more than 8,200 fueling locations through supply partnerships with major refiners including Sunoco LP. A propane-exchange cage on the lot provides 20-pound tank swaps for residential and light-commercial users in the surrounding Mt Helix and Casa de Oro neighborhoods. The station's dual diesel-and-gasoline islands also attract commercial trucks that cycle through nearby wash facilities including Aqua Clean Car Wash on Parkway Drive, where the hand-wash format accommodates oversized vehicles that cannot fit standard tunnel bays. Diesel dispensers at this location deliver fuel through high-flow nozzles rated for Class 3 through Class 6 commercial truck tanks, serving the delivery and service fleets that circulate through La Mesa's eastern commercial zones.