Fuel up with quality TOP TIER™ gas at ARCO of 15135 Amar Rd La Puente, CA 91744. A leading fuel provider, ARCO has over 1,500 locations across the West Coast, Mexico and now the Upper Midwest. We serve quality TOP TIER™ gas-a gasoline standard created by nine of the world's top automakers-giving you everything you need to take care of your engine.