---
product_id: 572485623
title: "Stanadyne Diesel Performance Formula 38566, 64 Ounce"
brand: "stanadyne"
price: "$222.90"
currency: USD
in_stock: true
category: "Stanadyne"
url: https://www.desertcart.us/products/572485623-stanadyne-diesel-performance-formula-38566-64-ounce
store_origin: US
region: United States of America
---

# OEM-approved & top independent test performer Universal fit for buses & trucks 64 oz premium fuel additive Stanadyne Diesel Performance Formula 38566, 64 Ounce

**Brand:** stanadyne
**Price:** $222.90
**Availability:** ✅ In Stock

## Summary

> 🚛 Power your diesel, power your drive—performance that never quits!

## Quick Answers

- **What is this?** Stanadyne Diesel Performance Formula 38566, 64 Ounce by stanadyne
- **How much does it cost?** $222.90 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/572485623-stanadyne-diesel-performance-formula-38566-64-ounce)

## 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

- • **Proven Performance:** Backed by independent testing and crafted by fuel injection experts
- • **Superior Cleanliness:** Meets Cummins L10 Superior Test to keep your engine pristine
- • **OEM-Approved Excellence:** Trusted by GM, Ford, Deere & Navistar for unmatched reliability
- • **Universal Compatibility:** Perfect for buses, trucks, and all diesel vehicles—no guesswork needed
- • **All-in-One Diesel Solution:** Tackles virtually every diesel fuel problem with one powerful formula

## Overview

Stanadyne Diesel Performance Formula is a premium 64 oz all-season diesel fuel additive designed to solve virtually any diesel fuel-related issue. Approved by major OEMs like GM and Ford, it meets the rigorous Cummins L10 Superior Test for cleanliness and is crafted by a leading fuel injection equipment manufacturer. Compatible universally with buses and trucks, it delivers proven, reliable performance backed by independent testing.

## Description

The most comprehensive, multi-function diesel fuel additive available is Stanadyne Performance Formula. It is the only additive that addresses virtually any diesel fuel-related problem with one product.

## Features

- Causes serious eye irritation.
- Causes skin irritation.
- Harmful if swallowed.
- May be fatal if swallowed and enters airways.
- May cause drowsiness or dizziness.
- Suspected of causing cancer.
- Approved by many OEMs including GM, Ford, Deere & Navistar
- Proven to perform best in independent testing
- The premium, all-season, all purpose diesel fuel additive, designed to tackle virtually any diesel fuel related problem.
- Meets Cummins L10 Superior Test for cleanliness
- Made by a fuel injection equipment manufacturer

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000M5QPSY |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | 92,685 in Automotive ( See Top 100 in Automotive ) 418 in Fuel Systems |
| Brand | Stanadyne |
| Brand Name | Stanadyne |
| Compatible with Vehicle Type | Bus, Truck |
| Container Type | Bottle |
| Customer Reviews | 5.0 out of 5 stars 2 Reviews |
| Liquid Volume | 64 Fluid Ounces |
| Liquid volume | 64 Fluid Ounces |
| Manufacturer | Stanadyne |
| Manufacturer Part Number | 38566 |
| Package information | Bottle |
| UPC | 753167924442 026508385661 |
| Unit Count | 1892.7 millilitre |
| Vehicle service type | Bus, Truck |

## Product Details

- **Brand:** Stanadyne
- **Liquid volume:** 64 Fluid Ounces
- **Package information:** Bottle
- **UPC:** 753167924442 026508385661
- **Vehicle service type:** Bus, Truck

## Images

![Stanadyne Diesel Performance Formula 38566, 64 Ounce - Image 1](https://m.media-amazon.com/images/I/81pv14WSKLL.jpg)

## Questions & Answers

**Q: does it contain antigel**
A: The performance does have a antigel     the winter formula is for extreme cold weather

**Q: Is this compatable with def (diesel exhaust fluid) engines.  i'm in ca and have a 2011 duromax.**
A: Like other popular additives on the market, the use does not have any bearing on the use of DEF as the DEF is part of the "after combustion stage" of any modern pick-up truck diesel engine.  Stanadyne additive is one of the better additives with regards to helping to keep the injectors lubricated during use which also helps to keep them clean and therefore greatly aides in cooling the injectors which are the 3 components of any good diesel fuel; Fuel for combustian-Lubrication of pumps & injectors-Cooling of Injectors, therefore, longer life expectancy!  The idea of increasing the cetane rating might be true for some of the additives one can buy, but that is really not the reason to buy any diesel additive!  DEF is injected after the combustion process and only used to help dissolve and burn out any particulate matter being emitted in the exhaust.

**Q: How often do you use it? Is every fill up ok?**
A: Yes I use 6oz every fill up it is great for the engine and increases power

**Q: What is the dosing ratio of additive to diesel fuel?**
A: .26 ounces per gallon of diesel.

## Frequently Bought Together

- Stanadyne Diesel Performance Formula 38566, 64 Ounce
- Stanadyne 38561 Diesel Lubricity Formula, 64 oz
- Stanadyne 43566 Performance Formula Injector Cleaner, 32 oz

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-04-23*