Hydra DPB-100 - Diesel Fuel Additive & injector Cleaner

Our Price:  £21.99(Inc. 20% VAT)(£18.33 Exc. VAT)

(Please note dosing bottles are only supplied when shipping to the UK)

Diesel Improvers / Injector Cleaners Comparison 

Fuel Additives Problem Solver

For Petrol Fuel Version - Click Here

Click here to read our blog: Premium fuel for a fraction of the price!

  (118 Reviews)


  • Includes ethanol stabiliser to combat the harmful effects of ethanol fuels E5 and E10.
  • Protects and maintains both modern & classic cars
  • Carburettor anti-icing benefits
  • Additive for diesel fuel changes supermarket standard diesel into a premium grade, reducing fuel consumption.
  • Contains cetane booster, lubricants, and detergents.
  • Safe with catalytic convertors
  • Reduces diesel smoke, odour, and all harmful emissions.
  • Cleans injectors, fuel pump EGR valves, turbos, etc.
  • Prevents formation of and removes existing deposits caused by carbon.
  • 500ml treats up to 750L of diesel fuel.
  • 5 Litre bottle comes with free dosing bottle.


Brand:  HYDRA




  • Includes ethanol stabiliser to combat the harmful effects of ethanol fuels E5 and E10
  • Protects and maintains both modern & classic cars
  • Prevents corrosion in the fuel system and engine components.
  • Enhances ordinary diesel, boosting performance and reducing fuel consumption.
  • Contains cetane booster, lubricants, and detergents, including polyetheramine, the latest cutting-edge detergent.
  • Safe with catalytic convertors
  • Reduces diesel smoke, odour, and harmful emissions, helping your vehicle pass its MOT.
  • Carburettor anti-icing benefits.
  • The best fuel injector cleaner for diesel fuels. It cleans the injectors, fuel pump EGR valves, and turbos, helps keep DPF clean.
  • Prevents formation and removes existing carbon deposits on all internal engine components.
  • 500ml treats up to 750L of diesel fuel.


1st Application Dose Rate: 1:1,000 Use 1ml Hydra DPB-100 to 1 litre of fuel.
Maintenance Dose Rate: 1:1,500 Use 2ml Hydra DPB-100 to 3 litres of fuel.


Our additives are specially formulated to help protect your cherished classic car or motor bike from the harsh corrosive nature of fuels containing ethanol.

Ethanol absorbs moisture from the air. When a classic car or motor bike is stored for long periods without being used, this moisture condenses in the fuel tank, fuel lines, carburettors and engine components causing metal components to rust.

Hydra’s additives include a corrosive inhibitor to combat these issues.


After only 20-30 hours, modern engines can lose as much as 5% of their power and fuel efficiency through deposits building up inside the injectors. These deposits affect the smooth flow of injected diesel fuel, reduces your fuel economy, and makes cold starting of your engine more difficult.

Hydra diesel fuel additive is a specialised fuel injector cleaner, carbon deposit remover, and fuel lubricant that will stabilise diesel fuel.

By utilising new developments in detergent technology, such as polyetheramine, Hydra DPB-100 Diesel Fuel Additive & Injector Cleaner ensures a complete internal engine clean, down to molecular levels.

Existing carbon and unburnt fuel deposits are rapidly removed from injectors and valves, giving the engine an as-new performance.

DPB-100 cleans fuel lines, pumps, injectors, turbos, and EGR valves and helps keep the DPF clean by reducing carbon build-up.


Cars, vans, trucks, buses, trains, boats, generators, earth moving vehicles, military vehicles, etc., 

Including all 2 and 4 stroke engines.

For highly tuned diesel engines, use Hydra MAXIMUS.


The problem with diesel fuel used in boats, generators, farm vehicles, etc., is that this fuel often remains in the fuel tank for extended periods before being used. As many of us know, this fuel starts to degrade after only four weeks, leading to long-term problems and inefficiencies (in a car, it is usually used within a week or two).

Hydra DPB-100 prevents sludge and sediment formation and reduces oxidation of diesel fuel caused by thermal breakdown. Safe for ALL diesel fuels and ALL diesel engines, including agricultural and marine. Stabilises diesel for up to 2 years (ideal for winter storage).


Modern high-pressure direct injection engines use precise fuel metering through narrow-shaped spray channels. Injector deposits mean reduced fuel flow. 100% clean injectors give optimal fuel spray pattern; this results in a very finely atomised spray pattern. This means that each finely dispersed particle of fuel is surrounded by many air molecules (20% oxygen), ensuring a more complete burn. Giving better fuel economy reduced emissions and improved engine durability.


Hydra DPB-100’s nano-molecular catalyst ingredient introduces additional oxygen to the fuel; this catalyst lowers the auto-ignition fuel temperature, giving a longer burn time. You are now burning all the fuel instead of blowing some of it through the exhaust system, where it will help clog the Exhaust Particle Filter if fitted. The net result is a quieter and smoother running engine with more mpg and reduced exhaust emissions.


Hydra DPB-100 also contains lubricity improvers that decrease fuel pump and injector wear issues; they work in very cold climates and are extremely low in sulphur. They improve the lubricity of diesel oil. Test results give an HFRR Wear Profile of less than 300. These lubricants also reduce the friction in the cylinder, thereby improving the coefficient of friction, reducing corrosion and helping improve fuel economy.

Hydra DPB-100 protects your valuable fuel systems and prevents engine malfunction and failure. Protects the fuel performance properties of EN590:2009 as well as specifications such as colour, heat of combustion, pour point, and cloud point. It also prevents fuel starvation, and damage to injectors and engines. Can be used in all grades of diesel fuel including B0 diesel and biodiesel fuels.


The digital meter in your car displays the current MPG (Miles Per Gallon). If that figure is lower than normal, then you may have fuel injector issues that can be resolved with an injector cleaner. This lower mpg could be due to dirty fuel injectors.


Independent Laboratory Tests proof that treated diesel still meets EN590:2009 the current EU standard for diesel fuel, therefore your vehicle warranty is not affected by using Hydra DPB-100.

Hydra DPB-100 gives a much smoother, quieter engine with less exhaust smoke, fuel remains stable whilst fuel consumption and harmful emissions are reduced to a minimum.


Our products are manufactured to the highest specifications at our UK plant, which is accredited to ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018.



  1. Remove filling tube from the bottle.
  2. Open the cap on filling chamber and pierce the seal. 
  3. Tightly fit filling tube onto the bottle, remove closure from the top of the tube and gently squeeze the bottle to fill the filling chamber with product.
  4. Pour the product directly into your fuel tank, repeat if necessary.
  5. Close the bottle with original cap and store upright to avoid spillage.

Pour directly into fuel tank before or after refueling.

Use only for DIESEL FUEL (for Petrol Fuel please see PIC-24 Petrol Power Blast)

1st Application Dose Rate: 1:1,000 Use 1ml Hydra DPB-100 to 1 litres of fuel.
Maintenance Dose Rate: 1:1,500 Use 2ml Hydra DPB-100 to 3 litres of fuel.

Can diesel injectors be cleaned and when can I see benefits?

Diesel injectors can be removed and cleaned, this is normally done by a garage and it is quite an expensive job. A much cheaper alternative is to use a product such as Hydra DPB-100 Diesel Injector Cleaner which when added to your fuel tank, cleans your diesel fuel injectors at home and whilst you are driving. To obtain maximum benefits you should use it every time you refuel.

Do diesel fuel injector cleaner additives really work?

Some are better than others, a good fuel injector cleaner such as DPB-100, will contain the latest detergent technology such as polyetheramine which ensures a deep clean down to molecular levels. 

What are the symptoms of a bad diesel fuel injector and how do I know if I need a fuel injector cleaner?

Signs of a diesel injector that needs cleaning include; bad cold weather starting, black smoke from the exhaust, juddering, and a noisy engine with a lack of power. The easy answer is to add Hydra DPB-100 Diesel Injector Cleaner at every refill, this will keep your engine running at maximum efficiency.

Who makes the best fuel additive diesel injector cleaner for engines?

We believe that Hydra International do, we work with the largest fuel additive raw material manufacturers in the world, these companies supply refineries with tens of thousands of tons annually of their products. This close association allows Hydra International to be at the cutting edge of product development which is necessary as fuel specifications change.

Which is the best diesel system cleaner to use for a van?

A van usually has much higher annual mileage than a car, therefore internal carbon deposits will build-up quicker. We would recommend using Hydra DPB-100 every time you refuel, this will ensure that your engine is always running at optimum performance and economy.

Which is the best fuel injector cleaner supplied in the EU?

Europe is a very large marketplace so there are hundreds of different products available from small to large manufacturers. The best product should be manufactured by experts in this field, their product development should include taking into account Quality, Environment and Safety issues and these abilities should be audited to International Standards, Hydra International is such a company, their procedures are audited to the following International Standards, ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018.

Which is the best fuel treatment for diesel systems?

We believe the best fuel treatment for diesel engines will always incorporate the latest detergents, cetane boosters and lubricants, thereby ensuring maximum clean and fuel economy.

Can I use this on my boat heating system?

Yes, you can.

Usually I fill my tank when half empty, does DPB-100 work better on a fully empty tank?

It will not make a difference as long as you are dosing the recommended amount when you refill. The tank must be at least 10% full before you add DPB-100.

Will this solve a black smoking problem?

Yes, when you use Hydra DPB-100 you are deep cleaning your internal engine components, including the injectors, this will ensure that you get a much better, more efficient fuel burn, as your black smoke is actually unburnt fuel.

Is this suitable for bio diesel and veg oil?

Yes, it is ideal for this situation.

How much do I need for a 3.5ton motorhome?

You use 1ml per litre of Diesel e.g. if your fuel tank contains 80 litres, you add 80ml to the tank. The dosing bottles have markings for various volumes.

Claims to clean egr and turbo, but neither component has fuel running through it?

Our additive is a liquid that combines with Diesel fuel, upon ignition this additive turns into a gas that passes through the engine components into the exhaust system. The gas contains nanoparticles that help clean anywhere the gas passes through this includes the EGR and parts of the turbo. 

Is this product suitable for use in Volkswagon Transporter 2017 with adblue system?

It will work fine in your system, remember this is added to your fuel tank. 

Average Rating (118 Reviews):  
Write a Review and share your opinions!

It's work as add on like premium quality fuel
12 January 2023  | 

Itís work as itís described, more mileage , every 10 ml save me about £10


This review has not been appraised.

Engine cleaner
10 January 2023  | 

Seems like a good product


This review has not been appraised.

Very good service
04 January 2023  | 

Well packed & very easy to dispense with the supplied tube & calibration on the container.


This review has not been appraised.

Easy to use
22 December 2022  | 

I have been using this to try and cure a lumpy start issue on my D5 volvo. It's early days but seems to be working.


This review has not been appraised.

13 December 2022  | 

Car starts first time in below freezing temperatures. Performance is also very good.


This review has not been appraised.

Noticeable improvement all round
03 December 2022  | 

Improved MPG consistently, by at least 5% and up to 10%, in my already very efficient Fiesta van (1.5 diesel).

Noticeably quieter running engine.

Reduction in smoke - my engine has 190k on it and it smokes under hard acceleration, but this has improved with this additive. Got through the MOT (just!) have failed prior.


This review has not been appraised.

335,000 BMW Diesel
19 November 2022  | 

I've got a 335,000 BMW E46 330D Touring and this this a few years ago to clean and help out with mpg and proformance.
When I started using this my modified E46 330D mapped to 300bhp was suffering with some starting issues and MPG getting worse. So I done some research and wacked this stuff in. I got a 500ml bottle and after probably two tank fulls it was really starting to take notice. Starting was impressive literally 2nd turn it would fire. Throttle response was soo much better and the tourqe was more noticeable. My car was used daily and tracked too. And definitely felt a different from using this from 240k till 33k I can definitely say it actually made a difference and the car lived lots longer and kept strong.
The car was strong and I'm sure this stuff helped. Unfortunately due to a track accident the car is not going to be on the road again, but foot to the floor that engine never missed a beat and ran sweet and I'm sure it was down to this.
I have now got a petrol VXR Zaffia with 211k miles and will be using the petrol version of this in it as I fully trust this fuel product.


This review has not been appraised.

Fixed Injector Fault (Renault Clio)
14 November 2022  | 

I started to notice a flat spot on my Mk3 Renault Clio. Over time it got worse and eventually I got a warning message on the dashboard stating an injector failure. I decided to try this before replacing the injector (which is expensive). I honestly didnít think it would make a difference but to my amazement itís cured it completely. This stuff is brilliant and Iíll be using it regularly from now on.


This review has not been appraised.

14 March 2022  | 

Oh how they tried to rip me off - all I heard was new injectors blah blah. Over a grand. But found this - contacted the company - got some sound advice re first dose to shock the engine etc which was very much appreciated so I bought syringes - worked out how much was in the fuel tank plus how much I was going to put in. Went armed to the petrol station with gloves and pre measured syringes - got some weird looks (what is this wench up to) - gave the car a really good run over a few days and the engine light has gone off itís running smoother better than ever and sounds better. I will always be using this now and Iím grateful you saved me from spending a fortune on something I didnít need.

Was this helpful to you?  Yes  /  No

3 of 3 people found this review helpful.

02 March 2022  | 

Staff very knowledgeable. Prompt service and delivery of Hydra DPB-100.


This review has not been appraised.

Read all 118 customer reviews...

Related Products
HYDRA FPB-77 FuelPlus - Treatment for Petrol, Kerosene & Diesel
HYDRA FPB-77 FuelPlus - Treatment for Petrol, Kerosene & Diesel
From:  £13.15

Knocks Out Harmful Bugs (Microbes) in All Fuels

HYDRA DPF-24 Diesel Particulate Filter Cleaner Fuel Additive
HYDRA DPF-24 Diesel Particulate Filter Cleaner Fuel Additive
From:  £11.50

Burn off accumulated soot deposits

HYDRA VULCAN - Heating Oil Additive
HYDRA VULCAN - Heating Oil Additive
From:  £12.05

Contains heavy duty detergents, cleans burner nozzles and injectors