Where is costco gas from




















According to some Reddit threads , Costco gas is essentially the same quality as many gas companies, including Shell, Mobil, Texaco, Chevron, and Exxon. Additionally, some Reddit users believe Costco buys their gas from these very refineries and renames it under their own Kirkland brand. The only real difference between Costco gas and, say, Shell is that Costco adds fuel additives on site to save money , as opposed to the refinery fuel rack.

In fact, Kirkland Signature gasoline contains high quantities of detergent additives , which help to improve the quality of the gas in your car as well as the cleanliness of the engine. Additionally, they found that engines that ran on Top Tier fuel averaged 19 times fewer intake valve deposits. All the fuel sold at Costco gas stations has higher than average quantities of detergent additives. Beyond that, the only difference between premium and regular Kirkland Signature gas is octane levels.

Aside from Costco, there are plenty of other gas stations in the US that sell fuel that meets Top Tier standards. For a better understanding of their stringent specifications, visit the Top Tier Gas website. As of January , some of the retail brands that sell Top Tier fuel at their gas stations include:. There may also be local convenience stores that sell Top Tier licensed fuel. When you approach the pump, you must insert your membership card first, followed by a Visa credit card or most PIN debit cards.

Read the policy here. Kirkland Signature fuel meets Top Tier standards, which means it has deposit control additives to clean your engine and help it run more efficiently. Buying gas from any of the stations on this list is better for your car! Home Cars. World globe An icon of the world globe, indicating different international options. Get the Insider App. Click here to learn more. A leading-edge research firm focused on digital transformation.

Good Subscriber Account active since Shortcuts. Account icon An icon in the shape of a person's head and shoulders. It often indicates a user profile. Log out. US Markets Loading H M S In the news. Steven John. Gas at Costco is almost always cheaper than what you'd find at other gas stations in the US. But Costco isn't necessarily the best place for every American to get gas.



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