Stanadyne Diesel Fuel Additive 4×8 oz Performance Formula — Cetane Boost, Injector Cleaner & Cold-Weather Protection

Stanadyne Performance Formula is a concentrated diesel fuel additive that cleans injectors, raises cetane, restores power and improves fuel economy when added to diesel fuel.

Designed for modern diesel engines running ultra-low sulfur diesel (ULSD) and biodiesel blends up to B20, this four-pack of 8 oz bottles delivers detergency, cetane boosting, lubricity restoration and cold-weather protection in a compact, easy-dose format. The formula targets deposits and water in the fuel system while protecting injection components and exhaust aftertreatment equipment.

How does this additive restore horsepower and improve acceleration?

Cleaner fuel injectors and optimized combustion are the primary routes to regaining lost power. The detergent components remove varnish and carbon from injectors and pumps, helping spray patterns return to their intended shape and improving fuel-air mixing.

• Detergents dissolve deposits on injectors and nozzles for better spray delivery.
• Cetane improver enhances ignition timing for smoother combustion.
• Cleaner combustion reduces rough running and improves throttle response.

Will Stanadyne Performance Formula lower my fuel consumption?

Yes — by promoting more efficient combustion and cleaner fuel system components, the additive can recover lost fuel economy. Independent testing has shown average improvements in miles per gallon, with higher gains possible depending on engine condition and driving style.

• Improves combustion efficiency through cetane enhancement.
• Removes injector deposits that cause poor atomization and wasted fuel.
• Lubricity improvement reduces internal friction for slightly better economy.

How does this product protect in cold weather and handle water contamination?

The formulation improves low-temperature flow and helps separate microscopic water droplets so filters and separators can remove them. Cold flow and demulsification properties reduce the chance of clogged filters and poor starting in chillier conditions.

• Improves pour point and cold filter plug performance for better winter startup.
• Demulsifiers promote water separation so filter/separators remove moisture effectively.
• No alcohol in the formula reduces the risk of dissolved water-related issues.

Is this safe for modern emission systems and biodiesel blends?

Stanadyne Performance Formula is formulated to meet modern fuel system demands and is safe for vehicles equipped with exhaust aftertreatment devices. It is compatible with ULSD and approved for biodiesel blends up to B20, with maintained lubricity and demonstrated water separation with biodiesel content.

• Meets engine fuel system requirements without harming aftertreatment systems.
• Lubricity additives restore protection for low-sulfur fuels and B20 blends.
• Corrosion inhibitors protect pumps, injectors and metal components.

Who is this for? Truck owners, farmers, marine operators and fleet managers who want a compact, proven diesel treatment for occasional dose-based maintenance or emergency recovery will find this four-pack convenient. Use it to restore lost power, combat injector deposits, improve cold-weather reliability and protect fuel system components when running ULSD or biodiesel blends up to B20.

Features at a glance:

• Restores horsepower and improves acceleration
• Detergents clean injectors and pumps
• Cetane improver for better ignition and smoother running
• Improves fuel economy on average, with variable results
• Lubricity for low-sulfur and B20 fuels
• Cold-flow enhancement and demulsification for water separation
• Corrosion inhibition and exhaust-aftertreatment safe