The Promenade Shell location of San Diego Gas and Car Wash on Leucadia Boulevard in Encinitas serves the Interstate 5 interchange corridor with Shell-branded fuel, hand car wash, and a convenience store as part of the nine-station regional chain. The hand wash bay strips brake dust and road-salt film from paint, trim, and wheel surfaces, a post-drive reset that pairs with the pre-inspection exterior cleaning drivers handle before California BAR emissions testing at Encinitas STAR Smog & Auto Repair. Reclaimed water and organic cleaning formulas reduce environmental discharge across the wash operation, matching the chain-wide sustainability standard applied at all nine locations. Shell V-Power 91-octane premium, 89-octane mid-grade, and 87-octane regular fuel grades dispense through multi-product pumps at the fuel island, serving the heavy commuter volume on Leucadia Boulevard between North Coast Highway 101 and Interstate 5. Upper-tier wash add-ons include spray wax, interior wipe-down, and tire shine that restore post-repair presentation for vehicles released from panel and paint work at Leucadia Auto Body in the Leucadia district. The hand wash protocol applies pre-soak foam, mitt-wash with pH-neutral shampoo, chamois towel dry, and compressed-air blow-out of mirrors, door handles, and trim crevices.