Stanadyne Diesel Fuel Treatment One Shot 8 oz Case of 24 — Treats 30 gal, Cleans Injectors & Boosts Cetane

Stanadyne Performance Formula One Shot is an 8 oz diesel fuel treatment that conditions 30 gallons of fuel per bottle to clean injectors, boost cetane, restore lubricity and improve performance.

Designed for modern diesel engines and formulated for ultra low sulfur diesel and up to B20 biodiesel blends, this one-shot bottle delivers a concentrated blend of detergents, cetane improvers, lubricity agents and corrosion inhibitors. Each 8 oz bottle treats up to 30 gallons of diesel fuel, and this listing is for a case of 24 bottles — ideal for fleets, professional shops, and serious DIY owners who want consistent fuel system conditioning and measurable performance benefits.

How does this product improve engine power and responsiveness?

Performance Formula One Shot uses targeted detergents and deposit modifiers to remove and prevent fuel injector and pump deposits. Cleaner injectors restore proper spray patterns and fuel metering, which helps combustion run more efficiently and can translate to better throttle response, acceleration and perceived power.

• Detergents clean injectors and injection system deposits
• Deposit modifiers help maintain injector nozzle spray patterns
• Cetane improver supports faster, more complete combustion

Will it help fuel economy and reduce emissions?

Independent testing has shown average improvements in fuel economy and reductions in smoke and particulates when the product is used as directed. By improving combustion efficiency and restoring lubricity, the treatment can lower unburned fuel and emissions while helping engines run smoother.

• Average MPG improvements reported around 4% with some gains up to 9.6%
• Combustion enhancement reduces visible smoke and particulate output
• Lubricity agents protect fuel system parts, reducing wear-related efficiency losses

How does it protect the fuel system and help in cold weather?

The formulation includes corrosion inhibitors, demulsifiers and stabilizers that protect metal parts, improve water separation and keep fuel fresher. Cold-flow additives improve pour point and cold filter plug point to help reduce gelling and filter issues in lower temperatures, depending on base fuel properties.

• Corrosion inhibitors guard pumps, injectors and lines against rust
• Demulsifiers release suspended water for easier separation by filters
• Cold-flow improvers can lower pour point up to 40°F and CFPP by up to 25°F

Is this safe for modern aftertreatment systems and biodiesel blends?

Stanadyne Performance Formula is formulated to be compatible with modern exhaust aftertreatment systems and is safe for use with ultra low sulfur diesel. It is also approved for biodiesel blends up to B20 and has been shown to improve water separation in fuels containing biodiesel.

• Meets fuel system requirements without harming aftertreatment devices
• Approved for diesel blends up to B20 (20% biodiesel)
• Contains no alcohol, avoiding associated corrosion and wear

Who is this for? Stanadyne Performance Formula One Shot 8 oz (case of 24) is aimed at fleet managers, diesel service shops, technicians and vehicle owners who want a reliable, concentrated treatment they can add during fueling or service intervals. It’s particularly useful for those running modern ultra low sulfur diesel or biodiesel blends up to B20 who need to restore injector cleanliness, improve cold-weather performance, protect fuel system components, and pursue measurable fuel economy and emissions benefits. Use as directed for consistent results and routine maintenance of diesel fuel systems.