---
product_id: 601897868
title: "Stanadyne Performance Formula Diesel Fuel Additive 2 Pack of 1/2 Gallon Jugs - Part # 38566"
brand: "stanadyne"
price: "$411.89"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/601897868-stanadyne-performance-formula-diesel-fuel-additive-2-pack-of-1
store_origin: US
region: United States of America
---

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

**Brand:** stanadyne
**Price:** $411.89
**Availability:** ✅ In Stock

## Summary

> 🚀 Unlock your diesel’s full potential — power, efficiency, and protection in every drop!

## Quick Answers

- **What is this?** Stanadyne Performance Formula Diesel Fuel Additive 2 Pack of 1/2 Gallon Jugs - Part # 38566 by stanadyne
- **How much does it cost?** $411.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/601897868-stanadyne-performance-formula-diesel-fuel-additive-2-pack-of-1)

## 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 Guardian:** Lubricity and corrosion inhibitors protect your fuel system from wear, rust, and harmful deposits.
- • **Smooth Operator:** Cetane improver enhances combustion for easier starts, quieter running, and reduced engine noise.
- • **All-Weather Warrior:** Improves diesel pour point by up to 40°F, ensuring reliable performance even in freezing conditions.
- • **Power Surge Guaranteed:** Cleans injection deposits to restore and increase horsepower for peak engine performance.
- • **Fuel Efficiency Mastery:** Proven to reduce fuel consumption by an average of 4%, saving you money on every mile.

## Overview

Stanadyne Performance Formula Diesel Fuel Additive comes in a convenient 2-pack of 1/2 gallon jugs, treating up to 500 gallons of diesel fuel. It boosts horsepower by up to 9.6%, improves fuel economy by an average of 4%, and enhances cold weather performance by lowering pour points up to 40°F. Designed for all diesel engines including on-road, off-road, and marine, it cleans injection systems, reduces emissions, protects against wear and corrosion, and stabilizes fuel without alcohol. Made in the USA and compatible with ultra low sulfur and B20 biodiesel fuels.

## Description

Performance Formula Diesel Fuel Additive 2 Pack of 1/2 Gallon Jugs - Part # 38566

## Features

- Restores/Increase Horsepower - detergents clean deposits in the injection system
- 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 |
|---------------|-------|
| Capacity | 0.5 gallons |
| Fuel type | Diesel |
| UPC | 634154698655 |
| Manufacturer | STANADYNE |
| Product Dimensions | 15.24 x 7.62 x 24.13 cm; 2.95 kg |
| Item volume | 3785 Millilitres |
| Batteries required | No |
| Import designation | Made in USA |

## Product Details

- **Brand:** Stanadyne
- **Colour:** black
- **Material:** High Density Polyethylene (HDPE)
- **Product dimensions:** 7.6W x 24.1H centimetres
- **Item weight:** 6.5 Pounds

## Images

![Stanadyne 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)

## 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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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-07*