Gas Prices Costco Santee (2025)

FAQs

What is the best day to buy gas at Costco? ›

Gas stations can get busy (avoid weekends)

Avoid weekend fill-ups if you can. Buying gas on a weekend could be a nightmare, as waiting times could take hours. To avoid this, the best time to get gas at Costco is on weekdays between 10-11 in the morning.

Costco Gasoline

Launch the app and tap the Warehouse icon at the bottom of the screen. Tap the pin of the warehouse you want to view gas prices at. You will be taken to the Warehouse details page. View the warehouse's hours and current gas prices.

Q: Where does Costco get its fuel? A: Costco buys fuel from major refineries and distributors in each area. All Kirkland Signature™ Fuel is guaranteed, just like the merchandise we sell inside the warehouse.

As gasoline prices fall, Costco does not lower prices at the same pace it raises them when prices are climbing. This allows the company to recoup some of the profits lost by doing the reverse when prices were rising.

Buy Gas on Monday or Tuesday

Be strategic about the days you fill up at the pump. “For gas, Mondays and Tuesdays tend to be the cheapest days to fill up your tank as demand is lower at the beginning of the week,” Anderson said.

Based on historical data, Saturdays have typically been the least favorable day to buy fuel. However, recent analysis by GasBuddy suggests that Thursdays were the most expensive day to purchase gasoline in 2021. The data reveals that in 28 states, Thursday had the highest average gasoline price.

You will be required to show your membership card when entering any Costco warehouse and when checking out at a payment register. Bar codes, photos or other copies are not acceptable. Your membership card must have a card number and recognizable, unobstructed full-face photo to be valid.

Good station operation and maintenance means the fuel is filtered and that contaminants, such as sediment and water, do not find their way into our members' vehicles. Costco fuel stations are well-maintained by our capable attendants so you may be confident that the fuel going into your car is clean.

You must be logged in to Costco.com and have a valid Costco Membership number saved in your online account to view pricing and/or purchase Member Only Items. When viewing product details, you will be prompted to login to your account to display pricing and enable the Add to Cart button.

The short answer is that unlike pretty much every other retail business that sells gasoline, Costco doesn't care about making money from its gas pumps. In fact, Costco typically sells its gas at a moderate loss. Why would Costco do this? It's not an act of charity.

Is Costco gas better than Chevron? ›

It's not only equal/better, it's literally the exact same stuff. Every fuel station in a given area gets their fuel from the same pipeline terminal. The big oil company brand on the pumps doesn't mean much, as it's just licensed and franchised just like McDonald's.

Costco opened its first gas station in 1995 with a commitment to members to provide high quality gasoline at the lowest possible prices. Members will find regular and premium grade fuel – and in some places, diesel. High quality fuel – it's another benefit of a Costco membership.

Generally speaking, buying gas at Costco is significantly cheaper than doing so at a traditional gas station. The typical driver can save more than $100 per year. Buying gas at Costco can justify a membership all by itself.

“Consumers see this as a customer-friendly convenience, but in truth, they help reduce congestion at the pumps, which allows more cars to pass through the pumps, which allows Costco to sell more gas,” says Bines. “It's a win-win, but only because it first benefits the consumer.”

Costco may have the lowest gas prices in your area, but they do not skimp on quality. Kirkland Signature gas is Top Tier, meaning it is high quality and could help keep your engine running at its best. Top Tier is endorsed by many automotive brands, including Toyota, Honda, Ford, GM, BMW, Audi, and Mercedes-Benz.

Best Day of the Week

According to a GasBuddy petroleum analyst, Monday and Tuesday is when gas prices are typically at their cheapest. As the week goes on, prices steadily tend to rise while finally culminating in the highest price during the weekend.

If you are filling up in the middle of a hot day, the gasoline may expand, causing you to get less gasoline in your vehicle, which means you pay more for less. Filling up in the morning when it is cooler can help ensure the gasoline has contracted, and you get a larger amount of fuel for the same price.

Kirkland Signature Gasoline has been certified to meet TOP TIER^™ performance standards. Learn more about Top Tier at toptiergas.com.

Weekends are the busiest, so avoid those days. Drive in between 10 am and noon on a weekday for shorter waiting times in line. Most people tend to pull up during their lunch breaks and after work in the evening on weekdays. Traffic is one-way only at all Costco gas stations to keep it moving quickly.