Costco Tire Service Center inside the La Mesa warehouse at 8125 Fletcher Parkway mounts and balances tires from Michelin, Bridgestone, BFGoodrich, and Goodyear, with nitrogen inflation included on every install to reduce pressure fluctuation across Southern California's temperature swings. Costco's tire-installation package bundles lifetime balancing, rotation, and flat repair into the purchase price, a service depth that complements the alignment and brake diagnostics at John's Automotive Care for post-install geometry verification. This Fletcher Parkway location near Sharp Grossmont Hospital and Grossmont Center also stocks Interstate batteries and handles TPMS sensor replacement, covering the two most common roadside-failure items beyond tires themselves. Run-flat mounting and high-performance fitments are available by appointment, serving the low-profile and staggered-width configurations common on vehicles that rotate through the La Mesa rental fleets at Dollar Car Rental on the nearby Bob Stall campus. Computer-balanced assemblies are torqued to manufacturer lug-nut specifications and verified on a Hunter Road Force Elite balancer to eliminate lateral-force vibration above 65 miles per hour.