---
product_id: 35800930
title: "4 Bottles of Stanadyne 38564 Performance Formula 8 oz Diesel Fuel Additive"
brand: "stanadyne"
price: "€ 106.07"
currency: EUR
in_stock: true
reviews_count: 8
category: "Stanadyne"
url: https://www.desertcart.hr/products/35800930-4-bottles-of-stanadyne-38564-performance-formula-8-oz-diesel
store_origin: HR
region: Croatia
---

# Improves fuel economy by 4% Boosts horsepower up to 9.6% Cold weather protection down to -40°F 4 Bottles of Stanadyne 38564 Performance Formula 8 oz Diesel Fuel Additive

**Brand:** stanadyne
**Price:** € 106.07
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock diesel power and efficiency like a pro!

## Quick Answers

- **What is this?** 4 Bottles of Stanadyne 38564 Performance Formula 8 oz Diesel Fuel Additive by stanadyne
- **How much does it cost?** € 106.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/35800930-4-bottles-of-stanadyne-38564-performance-formula-8-oz-diesel)

## 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:** Lubricates and cleans fuel injectors to prevent wear and corrosion.
- • **Power Up Your Drive:** Restores and increases horsepower and torque for peak engine performance.
- • **Eco-Smart & Compatible:** Safe for ULSD, B20 biodiesel, and exhaust aftertreatment systems—drive green without compromise.
- • **Winter-Proof Your Diesel:** Anti-gel formula protects your engine in freezing temps down to -40°F.
- • **Fuel Efficiency Gamechanger:** Achieve up to 4% better miles per gallon—save money and reduce stops.

## Overview

Stanadyne 38564 Performance Formula is a premium diesel fuel additive that boosts horsepower by up to 9.6%, improves fuel economy by 4%, and offers cold weather anti-gel protection down to -40°F. It cleans and lubricates fuel systems, prevents corrosion, and is fully compatible with ULSD and B20 biodiesel fuels, ensuring enhanced engine performance and longevity while reducing emissions.

## Description

Stanadyne Performance Formula protects your diesel engine and restores engine performance. The detergency and cetane improver in Performance Formula will help restore fuel economy, increase horsepower, and torque. Features/Benefits: Restores/Increases horsepower. Detergents clean deposits in the injection system, resulting in better combustion, improved acceleration, horsepower, and torque. Reduces fuel consumption. Independent tests show an average 4 percent improvement in miles per gallon and gains of up to 9.6 percent. Cetane Improver. Improves combustion, resulting in better engine starting, smoother running, and reduced engine noise. Meets all engine fuel system requirements and will not harm exhaust aftertreatment systems. Reduces emissions. Reduces smoke and particulate. Cleans and protects. Detergents and deposit modifiers help protect injection pumps, injectors, nozzles, etc. Reduces wear. Lubricity improvers restore lubricity to ultra-low sulfur diesel fuels and other low lubricity diesel fuels. Stabilizes fuel. Keeps fuel fresh and protects against gum formation caused by oxidation. Cold protection. Improves diesel pour point up to 40°F (71.6°F) and cold filter plug point up to 25°F (55.4°F), depending on the base fuel. Corrosion prevention. Corrosion inhibitors protect the fuel system from rust and corrosion. Helps remove water. Special demulsifiers force tiny water droplets out of the suspension/emulsion, so the filter/separator can remove water more effectively. Contains no alcohol. Prevents corrosion and accelerated wear. Specially formulated for use with ultra-low sulfur diesel fuel. Can be used with biodiesel fuel up to B20 (20 percent approved biological content). Increased water separation demonstrated in biological content up to B20. Applications: Diesel engine fuel additive

Review: Good fuel treatment - Does the job as described
Review: Great product - Great product. Can tell the difference with first tank. Also use in my tractor with no regens

## Features

- Improves Performance & Horsepower
- Cold Weather & Anti-Gel Protection
- Improves Fuel Economy
- Lubricates, Cleats & Protects
- Corrosion Preventative
- Exhaust Aftertreatment Safe
- ULSD & B20 Compatible

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01BXECJ7S |
| Best Sellers Rank | #11,619 in Automotive ( See Top 100 in Automotive ) #36 in Diesel Additives |
| Brand | Stanadyne |
| Customer Reviews | 4.8 4.8 out of 5 stars (368) |
| Date First Available | February 18, 2016 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.01 ounces |
| Manufacturer | Stanadyne |
| Manufacturer Part Number | 24349 |
| Product Dimensions | 13 x 11 x 2 inches |

## Images

![4 Bottles of Stanadyne 38564 Performance Formula 8 oz Diesel Fuel Additive - Image 1](https://m.media-amazon.com/images/I/91jysjdGReL.jpg)

## Questions & Answers

**Q: What is the shelf life of this product?**
A: They are sealed so expect a shelf life of a few years.

**Q: How many oz for 26 gal fuel tank**
A: Each of these bottles treat 30 gallons.  The approximate dosage is 1 ounce for every four gallons.  If your fill up is about 16 gallons put in 4 ounces (1/2 bottle).  If your fill up is 20 gallons put in 5 ounces.  Basically take the gallons added to the tank and divide by 4.  Round up or down to the nearest ounce.

**Q: Is this also an anti gel?**
A: Yes,  it includes 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

**Q: Should I had it to my empty tank, then fill it with fuel, or fill first, then dump in the bottle?**
A: I pump a few gallons in if empty (which I don't recommend for fuel system health) them complete the fill up with diesel fuel.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good fuel treatment
*by T***A on January 21, 2026*

Does the job as described

### ⭐⭐⭐⭐⭐ Great product
*by R***D on October 31, 2025*

Great product. Can tell the difference with first tank. Also use in my tractor with no regens

### ⭐⭐⭐⭐⭐ Decent price, quick shipping.
*by G***R on November 18, 2025*

Shipping was quick, price is competitive with other distributors. Stanadyne performance speaks for itself.

## Frequently Bought Together

- 4 Bottles of Stanadyne 38564 Performance Formula 8 oz Diesel Fuel Additive
- Stanadyne Performance * Diesel Injector Cleaner * QTY of 4 - 8oz bottles #43562
- Stanadyne Performance Formula Diesel Fuel Additive 2 Pack of 1/2 Gallon Jugs - Part # 38566

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-07*