---
product_id: 57022065
title: "Performance Formula Diesel Fuel Additive 2 Pack of 1/2 Gallon Jugs - Part # 38566"
brand: "stanadyne"
price: "VT46466"
currency: VUV
in_stock: true
reviews_count: 8
category: "Stanadyne"
url: https://www.desertcart.vu/products/57022065-performance-formula-diesel-fuel-additive-2-pack-of-1-2
store_origin: VU
region: Vanuatu
---

# Up to 9.6% horsepower boost 4% average MPG improvement Cold weather protection up to 40°F Performance Formula Diesel Fuel Additive 2 Pack of 1/2 Gallon Jugs - Part # 38566

**Brand:** stanadyne
**Price:** VT46466
**Availability:** ✅ In Stock

## Summary

> ⚡ Drive smarter, save fuel, and conquer every mile with Stanadyne Performance Formula!

## Quick Answers

- **What is this?** Performance Formula Diesel Fuel Additive 2 Pack of 1/2 Gallon Jugs - Part # 38566 by stanadyne
- **How much does it cost?** VT46466 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/57022065-performance-formula-diesel-fuel-additive-2-pack-of-1-2)

## Best For

- stanadyne enthusiasts

## Why This Product

- Trusted stanadyne brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Engine Whisperer:** Cetane improver ensures smoother starts, quieter runs, and reduced engine noise.
- • **All-Weather Warrior:** Enhances cold weather performance by lowering diesel pour point by up to 40°F.
- • **Power Up Your Drive:** Restores and increases horsepower for unmatched acceleration and torque.
- • **Fuel Efficiency Gamechanger:** Proven 4% average MPG boost, with gains up to 9.6%—save more on every mile.
- • **Ultimate Protection Formula:** Lubricity and corrosion inhibitors extend engine life and protect fuel systems.

## Overview

Stanadyne Performance Formula Diesel Fuel Additive is a premium U.S.-made solution designed to boost horsepower, improve fuel economy by up to 9.6%, and protect diesel engines from wear and corrosion. This 2-pack of 1/2 gallon jugs treats 500 gallons of diesel, enhancing combustion, reducing emissions, and providing cold weather protection down to 40°F. Trusted by professionals for over a decade, it’s compatible with ultra low sulfur and B20 biodiesel fuels, ensuring peak engine performance across all applications.

## Description

Stanadyne Diesel Fuel Additive Performance Formula The above price includes: 2 - 1/2 Gallon Jugs (64 oz.) Each Jug treats 250 Gallons of Diesel Fuel. The 2 Pack treats 500 Gallons of Diesel Fuel Virtually for every engine application big or small: ON ROAD – OFF ROAD – MARINE PRODUCT BENEFITS: Restores/Increase Horsepower – detergents clean deposits in the injection system resulting in improved combustion, better acceleration, power, and torque Reduces Fuel Consumption – independent tests show an average of 4% improvement in MPG and gains up to 9.6% Cetane Improver – improves combustion resulting in better engine starting, smooth running, and reduced engine noise Meets all engine fuel system requirements and will not harm exhaust aftertreatment systems Reduces Emissions – reduces Smoke and Particulates Cleans and Protects – detergents and deposit modifiers help protect injection pumps, injectors, nozzles, etc. Reduces Wear – lubricity improvers restore lubricity to ultra low sulfur and other low lubricity diesel fuels Stabilizes Fuel -keeps fuel fresher and protects against formations of gums caused by oxidation Cold Weather Protection – improves diesel pour point up to 40°F (22°C), and cold filter plug point by up to 25°F (13°C), depending on base fuel Corrosion Preventative – Corrosion inhibiters will protect the fuel system from rust and corrosion Helps Remove Water – special demulsifiers cause tiny water droplets to come out of suspension/emulsion, so the filter/separator can more effectively remove water Contains No Alcohol – avoids corrosion and accelerated wear Specially Formulated for use with ultra low sulfur diesel fuel Can be used with Bio Diesel Fuel up to B20 (20% bio content approved)

Review: Outstanding!!!!! - Great product I’ve been using it for about 10 years. Outstanding performance.
Review: Fantastic! - Best product on the market. I keep a few smaller bottles to take in the truck.

## Features

- Made in the U.S.A. Restores/Increase Horsepower.
- Reduces Fuel Consumption–tests show an average of 4% improvement in MPG and gains up to 9.6%
- Cetane Improver – improves combustion resulting in better engine starting, running & reduced noise
- Reduces Wear – lubricity improvers restore lubricity to ultra low sulfur diesel fuels
- Reduces Emissions – reduces Smoke and Particulates

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B072KSKP9H |
| Best Sellers Rank | #19,659 in Automotive ( See Top 100 in Automotive ) #44 in Diesel Additives |
| Brand | Stanadyne |
| Brand Name | Stanadyne |
| Capacity | 0.5 Gallons |
| Color | black |
| Customer Reviews | 4.8 out of 5 stars 857 Reviews |
| Fuel Type | Diesel |
| Item Dimensions W x H | 3"W x 9.5"H |
| Item Height | 9.5 inches |
| Item Weight | 6.5 Pounds |
| Manufacturer | STANADYNE |
| Material | High Density Polyethylene (HDPE) |
| Product Dimensions | 3"W x 9.5"H |
| UPC | 634154698655 |

## Product Details

- **Brand:** Stanadyne
- **Color:** black
- **Material:** High Density Polyethylene (HDPE)
- **Product Dimensions:** 3"W x 9.5"H
- **Item Weight:** 6.5 Pounds

## Images

![Performance Formula Diesel Fuel Additive 2 Pack of 1/2 Gallon Jugs - Part # 38566 - Image 1](https://m.media-amazon.com/images/I/81HHTqD8phL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Outstanding!!!!!
*by A***E on December 20, 2025*

Great product I’ve been using it for about 10 years. Outstanding performance.

### ⭐⭐⭐⭐⭐ Fantastic!
*by A***R on October 26, 2025*

Best product on the market. I keep a few smaller bottles to take in the truck.

### ⭐⭐⭐⭐⭐ Help Protect The CP4 Pump
*by T***O on January 4, 2026*

I’m running this in my 6.7 Powerstroke to help protect the CP4 pump from the bad diesel we have here in CA.

## Frequently Bought Together

- Stanadyne Performance Formula Diesel Fuel Additive 2 Pack of 1/2 Gallon Jugs - Part # 38566
- Stanadyne 38561 Diesel Lubricity Formula, 64 oz
- FPPF 00119 KILLEM BIOCIDE 16 OZ. BOTTLE, TREATS 1920 GALLONS OF DIESEL FUEL PER BOTTLE

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**Shop now:** [https://www.desertcart.vu/products/57022065-performance-formula-diesel-fuel-additive-2-pack-of-1-2](https://www.desertcart.vu/products/57022065-performance-formula-diesel-fuel-additive-2-pack-of-1-2)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-11*