10 Best Fuel Additives 2025 in the United States

The Lucas LUC10013 Fuel Treatment is designed for gasoline engines and comes in a convenient 1-gallon size, making it suitable for regular maintenance of cars, trucks, or other gas-powered vehicles. It stands out for its ability to clean and lubricate the entire fuel system, including injectors and carburetors, which helps maintain engine efficiency.

Users can expect better fuel economy and smoother acceleration thanks to reduced deposits that otherwise slow down fuel flow. An important feature is its ability to neutralize issues caused by low sulfur fuels, which can clog engines over time. Additionally, it helps lower harmful emissions and protects against rust and corrosion, extending the life of your engine parts. The product is made by Lucas Oil, a well-known brand with strong customer ratings (4.8 out of 5 from over 22,000 reviews), indicating reliability and satisfaction.

This additive is specifically formulated for gasoline and not suitable for diesel engines. The fuel additive is a solid choice for gasoline engine owners looking for improved performance, longevity, and cleaner emissions in a trusted, easy-to-use product.

The Chevron 65740-CASE Techron Concentrate Plus Fuel System Cleaner is a highly rated fuel additive designed to clean and protect the entire fuel system, including fuel injectors, carburetors, intake valves, and combustion chambers. It is suitable for various fuel types, and users can find more specific recommendations in the vehicle owner's manual. The product claims to restore lost power and fuel economy, reduce engine issues like rough idling and hesitation, and improve cold start performance.

Additionally, it enhances fuel stability for up to a year, making it a versatile additive for maintaining engine health. This pack of six 20 oz. bottles is an economical choice for regular maintenance. The product is made in the USA. Users should be mindful of the concentration and dosage instructions to avoid potential engine damage. The long-standing reputation of the Chevron brand in the automotive industry adds to its credibility.

While the benefits are clear, the product's efficacy may vary depending on individual vehicle conditions and usage patterns.

Chevron Techron Concentrate Plus is a highly regarded fuel additive designed to clean and protect the entire fuel system, including fuel injectors, carburetors, and combustion chambers. It helps restore vehicle performance by improving acceleration, power, and fuel economy, while also reducing issues like rough idling, engine hesitation, and spark plug fouling. This additive is compatible with most gasoline engines, including cars, trucks, motorcycles, boats, and lawn equipment, making it versatile for various users.

It is concentrated, so only a small dosage is needed every 3,000 miles or at each oil change for vehicles, which is convenient and cost-effective. One advantage is its ability to improve cold starts and maintain fuel stability for up to a year, helping keep engines running smoothly in different conditions. The product comes from Chevron, a reliable brand with a strong reputation, and has received excellent customer ratings, reflecting user satisfaction.

Users should follow the vehicle manufacturer’s instructions for best results, as overlooking this may affect the additive’s effectiveness. The package contains six 12-ounce bottles, which could be more than some users need, leading to storage considerations. Chevron Techron Concentrate Plus represents a top choice for those looking to maintain engine health and performance with a trusted, proven fuel additive.