---
product_id: 137482427
title: "HYDRA MAXIMUS fuel injector cleaner, 1 Litre treats Up To 500 L, for cleaning diesel injectors performance enhancing diesel turbo cleaner additive for diesel fuel EGR valve cleaner diesel engines"
brand: "hydra"
price: "483 Lei"
currency: RON
in_stock: true
reviews_count: 10
category: "Hydra"
url: https://www.desertcart.ro/products/137482427-hydra-maximus-fuel-injector-cleaner-1-litre-treats-up-to
store_origin: RO
region: Romania
---

# Cleans up to 500L diesel Boosts cetane for max fuel efficiency Polyetheramine tech for injector cleaning HYDRA MAXIMUS fuel injector cleaner, 1 Litre treats Up To 500 L, for cleaning diesel injectors performance enhancing diesel turbo cleaner additive for diesel fuel EGR valve cleaner diesel engines

**Brand:** hydra
**Price:** 483 Lei
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock your diesel’s hidden power — clean, smooth, and efficient every mile!

## Quick Answers

- **What is this?** HYDRA MAXIMUS fuel injector cleaner, 1 Litre treats Up To 500 L, for cleaning diesel injectors performance enhancing diesel turbo cleaner additive for diesel fuel EGR valve cleaner diesel engines by hydra
- **How much does it cost?** 483 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/137482427-hydra-maximus-fuel-injector-cleaner-1-litre-treats-up-to)

## Best For

- hydra enthusiasts

## Why This Product

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

## Key Features

- • **Engine Revival Power:** Restores diesel engine performance to ‘as new’ smoothness and power.
- • **Fuel Economy Booster:** Cetane boosters and lubricants reduce diesel knock, smoke & harmful emissions for smarter mileage.
- • **Long-Lasting Protection:** Prevents carbon buildup and wear with advanced detergents and low-sulphur formula.
- • **Comprehensive Injector Care:** Targets fuel lines, pumps, injectors, turbo, and EGR valves for total system detox.
- • **Trusted by Diesel Enthusiasts:** Highly rated by users for quieter, smoother engines and extended engine life.

## Overview

HYDRA MAXIMUS is a premium 1-litre diesel fuel injector cleaner that treats up to 500 litres of fuel. Powered by polyetheramine and enriched with cetane boosters, lubricants, and detergents, it cleans injectors, fuel lines, turbochargers, and EGR valves. This additive enhances engine performance, reduces emissions, improves fuel economy, and extends engine life by preventing carbon deposits and wear.

## Description

Buy HYDRA MAXIMUS fuel injector cleaner, 1 Litre treats Up To 500 L, for cleaning diesel injectors performance enhancing diesel turbo cleaner additive for diesel fuel EGR valve cleaner diesel engines at desertcart UK. Free delivery on eligible orders.

Review: Great quality products - This additive definitely does something to the car, there is a fuel saving, but not huge, the big thing for me is the result it has on the engine, with the additive the engine is so much quieter and a lot smoother. Running a 110000 diesel Vauxhall so like to look after the engine. I have been using this company's additives for over a year now and rate these over the big name brands 100%
Review: Refreshes the fuel system for old diesels, use on sooted up short journeys diesels - Had a check engine light, obd called it as a a fault on an exhaust sensor, so after clearing the fault code, looked around for a good fuel system cleaner. Amazing stuff, put a couple of doses in half a tank of fuel. Before there was a slight unevenness in the running of the engine and although quick once pushed it lacked that initial urgency. Now it is smooth and more responsive. Not really surprising as it is a 16 year old Mercedes 320cdi, fortunately it is pre-dpf, no EGR and mostly motorway driving which all normally leads to a longer engine life, longer product life and so is why it is running well at 195,000 miles. Overtime, despite full scheduled servicing, the injectors start to block, particularly if you run it down to the bottom of the tank and on some of the supermarket fuels and you see a slight reduction in fuel economy, perhaps around 10%. This can kill a car, my last car had injector problems and often the injector proves impossible to remove as it corrodes into the cylinder head over time and so the car had to be scrapped, as uneconomical to repair. These type of products typically unblock injectors and decarbonise the engine but this one also raises the burn efficiency of the fuel resulting in improved performance and economy. Noticeable difference, definitely would recommend. Will report back later after more use and a longer journey test, but the results from the first two 30 mile outings look promising. Might ditch the detachable filler tube as this makes it easier to keep in the car boot, less likely to smell as more containable. Should make the engine last at least another 200,000 miles countryside and motorway driving. This will keep my internal combustion engine going until we have seen off the EV fad. Just need an additive now to clean the roads of ULEZ. Update, after of a couple of months of use it does not seem to improve fuel economy if your engine is already running running well. Probably this works best on engines that run short journeys and so clog up. Next I will try this on the wife’s diesel..

## Features

- Causes serious eye irritation.
- Causes skin irritation.
- Harmful to aquatic life with long lasting effects.
- Extensive use: MAXIMUM DIESEL FUEL INJECTOR CLEANER is for highly tuned diesel engines. It is a diesel cleaner and fuel stabiliser. Hydra Maximus contains cetane booster, lubricants and detergents that clean fuel lines, pumps, injectors, fantastic turbo diesel cleaner, and EGR valves, helping to keep DPF clean.
- Exceptional Performance: Hydra Maximus fuel injector cleaner is a Maximum performance cleaning diesel Injector additive. Hydra uses polyetheramine, which is the best diesel injector cleaner, that removes existing carbon deposits and prevents new formation. This helps to restore engine performance and power to ‘as new’.
- Maximum Fuel Efficency: Maximus is a diesel additive that contains cetane boosters, detergents and lubricants for improved cold starting, smoother engine, with better pick-up and reduced diesel knock, smoke and harmful emissions. It is a premium quality injector cleaner with improved diesel fuel stability and economy.
- Perfect Lubricant: The dpf cleaner diesel and regenerator helps in decreased fuel pump, injector and cylinder wear issues. It is low in sulphur and work at low temperatures. This diesel injector cleaner also helps to improve fuel economy. Giving an HFRR wear profile of less than 300
- Customer Satisfaction: Hydra ensure 100% customer satisfaction for all their products. In case of any query related to the diesel injector cleaner, feel free to contact us. We will try providing a solution to our best capacity.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07RN8HZH3 |
| Best Sellers Rank | 8,770 in Automotive ( See Top 100 in Automotive ) 119 in Fuel Systems |
| Brand | HYDRA |
| Customer Reviews | 4.6 4.6 out of 5 stars (933) |
| Date First Available | 9 May 2019 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Item Weight | 1.2 kg |
| Manufacturer | Hydra International Ltd |
| Manufacturer part number | HYD63906 |
| Manufacturer reference | HYD63906 |
| Package Dimensions | 27.1 x 19 x 10.7 cm; 1.2 kg |

## Images

![HYDRA MAXIMUS fuel injector cleaner, 1 Litre treats Up To 500 L, for cleaning diesel injectors performance enhancing diesel turbo cleaner additive for diesel fuel EGR valve cleaner diesel engines - Image 1](https://m.media-amazon.com/images/I/616ItkCg6-L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Can someone just confirm the recommended  dilution so how many milliliters per litre**
A: The dosage for maximus is 2ml of additive to every 1 ltr of diesel fuel .add directly in to fuel tank at fill up time ,as an example if you have just put 20 ltrs of diesel in your car then you would add 40ml of maximus .

**Q: Does it remove water as well or should I use dryer along with it?**
A: as far as i know this product does not remove water from fuel, there should be a drain plug on the base of your fuel filter housing to remove water from the fuel system if any is present? i use b7 diesel and not bio diesels so im not clued up on a dryer product ?

**Q: If i accidentally overdose the additive will it have a negative impact?**
A: Lots of variables ..... Is it first use ?  How much overdose ? Was tank full ? Etc, etc.
I wouldn't worry, just wait until you have filled up twice, then carry on as usual.
As long as you don't overdose every fill, no sweat.
I use a big Hypodermic Syringe to squirt addative in tank.

**Q: Hi can I use it (maybe just one off) to 1:100 ratio? That is 500ml bottle in my 50liter tank?**
A: 500ml to a 50 liter fill up makes that 10ml to each ltr making that 5 times the recommended dose suggested by hydra,would suggest contacting hydra directly for technical advise to make sure that at those ratios it wont have a detrimental affect on injection pump seals or injectors internals depending on what type of system you have either an older rotary mechanical system or a modern high pressure common rail system . there is also a possibility  that the  ratio suggested could affect the way the diesel fuel ignites in the cylinder on compression which could result in  piston, cylinder ,or even valve damage  ,suggest hydras advice first before using at that ratio,hope this answer is helpfull !

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great quality products
*by G***S on 23 December 2025*

This additive definitely does something to the car, there is a fuel saving, but not huge, the big thing for me is the result it has on the engine, with the additive the engine is so much quieter and a lot smoother. Running a 110000 diesel Vauxhall so like to look after the engine. I have been using this company's additives for over a year now and rate these over the big name brands 100%

### ⭐⭐⭐⭐⭐ Refreshes the fuel system for old diesels, use on sooted up short journeys diesels
*by J***N on 23 September 2023*

Had a check engine light, obd called it as a a fault on an exhaust sensor, so after clearing the fault code, looked around for a good fuel system cleaner. Amazing stuff, put a couple of doses in half a tank of fuel. Before there was a slight unevenness in the running of the engine and although quick once pushed it lacked that initial urgency. Now it is smooth and more responsive. Not really surprising as it is a 16 year old Mercedes 320cdi, fortunately it is pre-dpf, no EGR and mostly motorway driving which all normally leads to a longer engine life, longer product life and so is why it is running well at 195,000 miles. Overtime, despite full scheduled servicing, the injectors start to block, particularly if you run it down to the bottom of the tank and on some of the supermarket fuels and you see a slight reduction in fuel economy, perhaps around 10%. This can kill a car, my last car had injector problems and often the injector proves impossible to remove as it corrodes into the cylinder head over time and so the car had to be scrapped, as uneconomical to repair. These type of products typically unblock injectors and decarbonise the engine but this one also raises the burn efficiency of the fuel resulting in improved performance and economy. Noticeable difference, definitely would recommend. Will report back later after more use and a longer journey test, but the results from the first two 30 mile outings look promising. Might ditch the detachable filler tube as this makes it easier to keep in the car boot, less likely to smell as more containable. Should make the engine last at least another 200,000 miles countryside and motorway driving. This will keep my internal combustion engine going until we have seen off the EV fad. Just need an additive now to clean the roads of ULEZ. Update, after of a couple of months of use it does not seem to improve fuel economy if your engine is already running running well. Probably this works best on engines that run short journeys and so clog up. Next I will try this on the wife’s diesel..

### ⭐⭐⭐⭐ Effective but difficult to use
*by I***N on 18 October 2021*

I could feel a slight increase in power and mpg, but the product is difficult to use, once you open it, it has a strong chemical smell and it is impossible to close it back sealed. I would rather buy a single use tube.

## Frequently Bought Together

- HYDRA MAXIMUS fuel injector cleaner, 1 Litre treats Up To 500 L, for cleaning diesel injectors performance enhancing diesel turbo cleaner additive for diesel fuel EGR valve cleaner diesel engines
- HYDRA DPF-24 DPF Cleaner - 3x250ml treats up to 180L. DPF Filter Cleaning Diesel Particulate Filter Cleaner with DPF Cleaner Fluid for Reduced DPF Cleaner Cost Easy To Use Fuel Additive.

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-12*