---
product_id: 383857017
title: "BlueDEF Diesel Exhaust Fluid Synthetic Urea Deionized Water 2.5 Gallon (5 Pack)"
brand: "blue def"
price: "€ 2233.97"
currency: EUR
in_stock: false
reviews_count: 5
category: "Blue Def"
url: https://www.desertcart.hr/products/383857017-bluedef-diesel-exhaust-fluid-synthetic-urea-deionized-water-2-5
store_origin: HR
region: Croatia
---

# Up to 5% improved fuel economy 32.5% ultra-pure synthetic urea Meets ISO 22241 purity & composition standards BlueDEF Diesel Exhaust Fluid Synthetic Urea Deionized Water 2.5 Gallon (5 Pack)

**Brand:** blue def
**Price:** € 2233.97
**Availability:** ❌ Out of Stock

## Summary

> 🌍 Drive Clean, Save Green — DEFining the Future of Diesel

## Quick Answers

- **What is this?** BlueDEF Diesel Exhaust Fluid Synthetic Urea Deionized Water 2.5 Gallon (5 Pack) by blue def
- **How much does it cost?** € 2233.97 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/383857017-bluedef-diesel-exhaust-fluid-synthetic-urea-deionized-water-2-5)

## Best For

- blue def enthusiasts

## Why This Product

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

## Key Features

- • **Ultra-Pure Formula:** Precision blend of 32.5% synthetic urea and 67.5% deionized water for peak SCR performance
- • **Convenient Bulk Supply:** 5-pack of 2.5-gallon containers ensures you never run dry on the road or at the job site
- • **Fuel Efficiency Booster:** Enhances fuel economy by up to 5%, saving costs while reducing your carbon footprint
- • **Certified Quality & Stability:** API certified, colorless, odorless, and stable fluid that meets rigorous ISO 22241 standards
- • **EPA-Compliant Emission Control:** Transforms harmful NOx into harmless nitrogen and water vapor, keeping your fleet green and compliant

## Overview

BlueDEF Diesel Exhaust Fluid is a premium, EPA-compliant solution composed of 32.5% ultra-pure synthetic urea and 67.5% deionized water. Designed for SCR-equipped diesel engines, it effectively reduces nitrogen oxide emissions by converting them into harmless nitrogen gas and water vapor. Certified to meet ISO 22241 and API standards, this stable, odorless, and colorless fluid also improves fuel economy by up to 5%. Available in a convenient 5-pack of 2.5-gallon containers, BlueDEF ensures reliable, high-quality performance for medium and heavy-duty diesel vehicles.

## Description

Diesel exhaust fluid is one of the key elements of the Selective Catalytic Reduction (SCR) process used by most medium and heavy-duty engine builders to meet EPA 2010 regulations. Blue DEF is a non-toxic solution of 67.5 percent purified water and 32.5 percent ultra pure automotive grade urea. Blue DEF is not a fuel or fuel additive. Instead, when injected into the exhaust stream and passed over a catalyst, helps convert NOx into nitrogen gas and water vapour, two harmless and natural components of the air. is stable, colourless and odourless, and meets ISO Standards 22241 for purity and composition and is an American Petroleum Institute (API) certified diesel exhaust fluid. These are the highest quality and safety standards in place to ensure optimum SCR performance. Making sure you do not run out of in a SCR equipped truck is simple, watch the Diesel Exhaust Fluid (DEF) gauge, which is part of the diesel fuel gauge, for when it is time to refill. DEF is stored in a dedicated tank next to the fuel tank on the driver's side. The tanks range in size from 6 to 23 gallons depending on the truck's application. The DEF tank fill opening is designed to accommodate a DEF fill nozzle to ensure only DEF is put into the tank. A diesel fuel nozzle will not fit into the DEF tank opening.

Review: Took a long time to be delivered, but that’s not the sellers fault. It looks just like what I ordered. I’m happy with it.
Review: I received my emergency backup supply of DEF for my RV on time, well packaged, and it looks, smells, and functions exactly as advertised. That’s what she said.

## Features

- Mixture of 32.5 percent high purity synthetic urea and 67.5 percent deionized water
- Helps convert nitrogen oxide into harmless nitrogen gas and water vapor for cleaner emissions
- Improves fuel economy by up to 5 percent
- Inject the fluid into your exhaust stream with a specialized dosing module
- Stable, colorless, odorless, and meets ISO standards 22241 for purity and composition

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07C51DF89 |
| Country of Origin | USA |
| Customer Reviews | 4.6 4.6 out of 5 stars (286) |
| Date First Available | 11 January 2020 |
| Fuel Type | Diesel |
| Item Weight | 0.28 g |
| Item part number | 5 x DEF002 |
| Manufacturer | Blue Def |
| Manufacturer Part Number | 5 x DEF002 |
| UPC | 689273390676 842372180221 |

## Product Details

- **Brand:** Blue Def
- **Capacity:** 2.5 Gallons
- **Colour:** Blue
- **Item Weight:** 0.01 Ounces
- **Material:** Plastic

## Images

![BlueDEF Diesel Exhaust Fluid Synthetic Urea Deionized Water 2.5 Gallon (5 Pack) - Image 1](https://m.media-amazon.com/images/I/814VvlHXztL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***K on 21 January 2026*

Took a long time to be delivered, but that’s not the sellers fault. It looks just like what I ordered. I’m happy with it.

### ⭐⭐⭐⭐⭐ Review
*by A***8 on 7 December 2025*

I received my emergency backup supply of DEF for my RV on time, well packaged, and it looks, smells, and functions exactly as advertised. That’s what she said.

### ⭐⭐⭐⭐⭐ Review
*by K***T on 23 May 2024*

Only product we use

## Frequently Bought Together

- BlueDEF Diesel Exhaust Fluid Synthetic Urea Deionized Water 2.5 Gallon (5 Pack)
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**Shop now:** [https://www.desertcart.hr/products/383857017-bluedef-diesel-exhaust-fluid-synthetic-urea-deionized-water-2-5](https://www.desertcart.hr/products/383857017-bluedef-diesel-exhaust-fluid-synthetic-urea-deionized-water-2-5)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-16*