The Valero Gasoline Station located on Harbor Blvd has some of the cheapest premium grade gasoline available in my local area. My friends always go there to fill up (because they drive BMWs) and they always give me good testimonials about the cheap prices there. Generally, compared to the other gas stations the premium 97 octane gasoline is about 5 to 7 cents cheaper than the other gas stations. Service there is good too. Self-serve, but the clerks will help you if you need anything.