Costco gasoline contains additives that are designed to maintain engine cleanliness and fuel quality. While Costco does not typically specify the exact additives they use, their gasoline is formulated with deposit control additives. These additives are intended to clean the engine and help keep it in good condition.
It’s worth noting that Costco’s gasoline meets the TOP TIER gas standards, which is a set of industry standards for fuel quality and engine cleanliness. This means that their gasoline is of high quality and contains the necessary additives to ensure engine performance and cleanliness.
In summary, while Costco does not openly disclose the specific additives in their gasoline, they do use additives to maintain engine cleanliness and meet industry standards for high-quality fuel.
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