Short Answer: Speedway does not offer TOP TIER-branded gasoline. Speedway’s gas meets all legally required fuel standards, but if you prefer to fill your vehicle with TOP TIER gas, you will want to find another gas-station chain. For more details about Speedway’s gas and the gas quality of similar places, see below.
Is Speedway TOP TIER Gas? Speedway Gas Quality Reviewed
Speedway does not sell TOP TIER Detergent Gasoline. Why does this matter? Well, studies have shown that TOP TIER actually helps to prolong the life of your vehicle.
According to the TOP TIER website, the specially formulated gasoline “was first introduced in 2004 when a group of automakers recognized the need for a higher detergency gasoline standard than that required by regulation.” By adding in certain blends of detergents, TOP TIER says that it’s able to prevent the accumulation of deposits that can harm your engine.
Studies back that up, too. Consumer Reports stated that gasoline without the TOP TIER additives could leave behind nearly 20 times as much gunk. In fact, the difference was so dramatic that the consumer advocacy organization said, “We think the EPA should consider raising the minimum detergent standards to ensure all drivers benefit from the type of performance and longevity promised by Top Tier fuels.”
Speedway does not offer TOP TIER Detergent Gasoline, although some conflicting reports make it appear as though it does. For example, industry publication Convenience Store News & Petroleum stated, “Speedway is a licensee of Top Tier gasoline.” Additionally, we reached out to Speedway Customer Service at (800) 643-1948 and spoke with Brandy. When we asked her if Speedway sold TOP TIER, she said, “Marathon is our parent company and they do provide all of our gasoline, so yes.”
You will find Marathon on TOP TIER’s list of retailers. However, you won’t find Speedway there. So we compared the safety sheet for Safeway gas to the safety sheet of another TOP TIER licensed brand. We were surprised to see that the TOP TIER gasoline had a remarkably different chemical composition. We reached out again to Speedway Customer Service and spoke with Nick, who stated, “Our fuel does not carry any detergent additives.” That contradicts other sources. Nick also explained, “If Marathon is not able to make a [delivery] run, Speedway is able to use third-party suppliers.” However, he added that Speedway’s gas met all applicable federal standards. Additionally, Jamal T. Kheiry, Communications Manager of Marathon Petroleum Corporation, stated, “Speedway gasoline does not contain STP additives and is not TOP TIER certified.”
Speedway does not use TOP TIER Detergent Gasoline. Though its fuel meets all applicable federal standards, it does not contain added detergents. To learn more about choosing the right fuel for your car, see our article on whether you should buy gas with a higher octane rating. And for more gas reviews, see our articles: Is Valero Gas Good? and Is Sunoco Gas Good?