National in Concord (4323 Clayton Rd)

great

Great customer service. Cheapest gas price among branded Gas Station. Exxon accept Plenti card which is really nice to earn extra rewards point.

Good cheap gas

Good location, easy access.

Prices don't match what is advertised. When asked, the cashier wasn't of much help. Beware and watch the charge.

gas prices were higher than what they were advertised as

good price and quality

Exxon branded gas with cheapest price. i like it.

they are still looking for their place raising and lowering prices

Renewable Diesel by Propel sold at this gas station. I am so glad we now have a gas station near enough to Walnut Creek selling products by Propel. Highly recommend using renewable diesel over petroleum diesel, not only is it cleaner but it also is cheaper than petroleum diesel due to its highly subsidized price