Since 2004, the Promenade Shell station in Encinitas's Leucadia district has anchored the Leucadia Boulevard and Interstate 5 junction with Shell V-Power NiTRO+ gasoline, diesel pumps, and a Castrol Premium Lube Express quick-service oil bay. The Castrol lube bay processes conventional, synthetic-blend, and full-synthetic oil changes with OEM-spec filter replacements, a turnover speed that supports the fleet vehicles cycling through Enterprise Rent-A-Car's Encinitas branch. San Diego Gas & Car Wash operates this Leucadia location alongside its El Camino and North El Camino Shell stations, centralizing fuel distribution and car-care services across the Encinitas corridor. The integrated car wash bay runs an automated exterior wash line with spot-free rinse, a complement to the hand-detail work at High Performance Auto Detail for drivers who need deeper paint correction. Castrol's GTX ULTRACLEAN and EDGE full-synthetic product lines flow through the lube bay's bulk-dispensing system, rated for European-specification 0W-20 and 5W-30 viscosity grades across import and domestic engines.