Concord Gas, next to Route 2, is truly a full-service gas station. They have gas and diesel, a car wash and detailing center, repair shop and convenience store. Make sure to have some cash with you when you go to fill up, though, as the price for gas here is slightly higher when you use a credit card.
Amenities
Foster City Touchless Car Wash is both a car wash and a gas station. Services include a "48 hour weather pledge" and a guarantee. The website offers printable coupons daily.
This Shell gas station, located on Alvarado Niles Road, is a convenience for customers as it not only has 12 self-service fuel stations but also a large food mart and Burger King. A car wash and public restrooms are also available at this establishment.