G & M Oil Co in Chula Vista operates a Chevron-branded station on Melrose Avenue under G&M Oil Company, an independent fuel retailer founded in Orange County in 1969. E85 flex-fuel and standard unleaded grades flow from the same island, broadening alternative-fuel access on a 91911 corridor that includes Soapy Joe's Car Wash on Main Street for post-fill exterior care. Chevron's Retail Excellence program — which audits fuel quality, restroom upkeep, and island maintenance through unannounced inspections — has certified this G&M location among its top-performing Southern California sites since 2010. Diesel, propane exchange, and compressed air round out the fuel menu, complementing the routine fluid services motorists book at Valvoline Instant Oil Change elsewhere in the 91911 ZIP. Every pump dispenses Chevron Techron-formulated gasoline meeting TOP TIER detergent certification, an additive standard engineered to reduce carbon-deposit buildup in both port-fuel-injected and GDI engines.