Best Diesel Additive UK – Diesel Injector Cleaners List
Adding fuel additives allows the engine to operate more efficiently. Both gasoline and diesel engines may benefit from the usage of these additives. Additionally, these products are said to maintain engine components such as the carburetor, injectors, and valves clean and free of water. Catalytic converters and other exhaust system components are targets for certain supplements.
Best Diesel Additive UK Quick Comparison Table
1. Fuel Set 1 Litre Bottle By Liquid Engineering – Read More
2. Star Brite Star Tron Enzyme Fuel Treatment – Read More
3. Redex Petrol Fuel System Cleaner, 250Ml – Read More
4. Diesel Fuel Complete DFC By Marine 16 – Read More
5. GST76400EN Ultra 5 in 1 Petrol System Cleaner – Read More
6. Stp Gst77400En Car Care Ultra System Cleaner
7. Stp Gst59200En Diesel Injector Cleaner
8. Fuel Injector Cleaner By Hydra
9. Liqui Moly Speed Tec 3722 Diesel Additive, 250Ml
10. Stp Diesel Treatment Fuel Cleaner
The Fuel Injector Cleaners: How Do We Rate Them?
Finding the finest fuel injector cleaners might be a challenge due to the many products on the market. To help you make an informed decision, we’ve put our suggestions through rigorous testing and analysis. On extended highway drives, I obtained more MPG out of one of my diesel automobiles after using the STP Diesel solution. The Redex mixture has also been used in some of our gasoline-powered vehicles for a long time.
In our research, we also looked at how long the treatment lasted, how thoroughly they were cleaned, and how much they cost.

Best 5 Diesel Additive in the United Kingdom
Fuel Set 1 Litre Bottle By Liquid Engineering
Since I bought our narrowboat six years ago, I’ve been using this product. I think it does the job, and the examples below show why.
I had the engine serviced by a professional a few months ago, and the engineer asked me to look at the last fuel filter because, in his opinion, it didn’t need to be changed. After looking, I had to agree. If Fuel Set wasn’t working right,
I would look for signs that the filter needs to be replaced. I looked at four different sellers, and this one was the least expensive.
Pros
The Fuel Set 1 Litre Bottle By Liquid Engineering has a lot of features that I like most.
- Great product
- Reasonable Price
Cons
My expectations for Fuel Set 1 Litre Bottle By Liquid Engineering were not met.
- Not much 🙂 Except the Price goes up and down very quickly.
Where to buy Fuel Set 1 Litre Bottle By Liquid Engineering?
Fuel Set 1 Litre Bottle By Liquid Engineering was conceived and developed in the United Kingdom and is available in various online retails, official websites, and retail locations. The last time 5/23/2022 I checked, the price was £49.99. on Amazon UK. The price might rise or fall. There’s a link below that lets you see the current pricing. Please be aware that if you make a purchase, I may get a tiny commission.
Star Brite Star Tron Enzyme Fuel Treatment
Cures and avoids ethanol fuel issues, Allows for the easier facilitation of the prevention of phase separation from occurring.
The engine will start and operate more smoothly as a result of this modification. The consistency of gasoline may be maintained by using this product for up to two years.
Consumers Statistics Report


Pros
The Star Brite Star Tron Enzyme Fuel Treatment has a lot of features that I like most.
- Great Value
- Works as expected
Cons
My expectations for Star Brite Star Tron Enzyme Fuel Treatment were not met.
- Expensive
- Careful about leaking
Where to buy Star Brite Star Tron Enzyme Fuel Treatment?
TheStar Brite Star Tron Enzyme Fuel Treatment is available at retail, official websites, and local store. I checked on 5/16/2022 and it was £38.18 on Amazon. Price may change. To see the pricing, visit the link below. A little commission is earned on successful purchases.
Redex Petrol Fuel System Cleaner, 250Ml
I’ve been using this brand for three years and have no plans to stop or switch to another. Usually, I get it at a grocery store or gas station. Prices vary, and it’s best to buy them when it’s only £2, which doesn’t happen very often these days.
I’ll put it in my car after I go to the gas station and fill it up to the top, which the manual says to do. Changes are very noticeable. Mileage goes up by at least 5 per cent in warmer months and up to 10 per cent in cooler months.
The car feels better to drive, the engine feels smoother when changing gears, and the vehicle itself feels faster when going uphill. My car will run better for the next month and up to two months if I don’t add any more of it to the gasoline.
I drive an Audi Q2 S-line, a good car that doesn’t even need Redex. And when I add it, the car becomes so much more, and it’s clear that it’s better and different. A few more key points about this Star Brite Star Tron Enzyme Fuel Treatment
- Don’t use more than half of this bottle for a full fuel tank, and make sure the bottle is empty before you add the second half to your car’s fuel.
- You should wait for a full tank before using it again after using the bottle. Also, if you buy premium gas, you don’t have to mix it with it because it usually has similar additives to this fuel system cleaner.
Consumers Statistics Report


Pros
The Redex Petrol Fuel System Cleaner, 250Ml has a lot of features that I like most.
- Brilliant Products
- Easy to use
- Value for money
Cons
My expectations for Redex Petrol Fuel System Cleaner, 250Ml were not met.
- Not worked for VW Touran
Where to buy Redex Petrol Fuel System Cleaner, 250Ml?
Redex made the Petrol Fuel System Cleaner, 250Ml. It can be bought in stores, online, and on the Canon website. The last time I checked, on 23rd May 2022, it cost £4 on Amazon. Over time, prices may go up or down. Just click the link below to get the information you need. Please keep in mind that if you buy something after clicking on one of my links, I may get a small commission.
Diesel Fuel Complete DFC By Marine 16
Since I’ve been using Marine 16 for several years, I can say that I’ve never had an issue with diesel bugs. When the filters are replaced as part of the yearly service, they are spotless.
The diesel fuel complete product claims that it will solve the issue of a more effective water content that encourages the development of insects and will also clean the injectors and bores. I’ll be over the moon about it if it’s even half as lovely as the Marine 16. Excellent vendor, speedy shipping, and delivery by UPS
A few more key points about this Diesel Fuel Complete By Marine 16
- A Multifunction Diesel Additive offers advantages compared to those of premium fuels already on the market.
- It contains a biocide and is effective against issues caused by ULSD and biodiesel.
- Injectors and fuel systems are thoroughly cleaned.
- Boosts the number of cetane molecules
- It helps prevent the oxidation of stored diesel, which may lead to the creation of sludge.
Pros
- Excellent quality
- Fast shipping
- Reasonable pricing
Cons
- Careful about VW Jetta
Where to buy Diesel Fuel Complete By Marine 16?
GST76400EN Ultra 5 in 1 Petrol System Cleaner
I saw the dreaded “engine” light when I started my car. I thought it fixed everything after a broken EGR valve was found and replaced. The engine light came on again a week later.
After more investigation, it was found that the EGR valve on my 4-year-old Diesel Mini with 30,000 miles on it was clogged with carbon and that the exhaust pressure sensor pipe was clogged entirely, which was also what clogged up the EGR valve. I always try to clean it out by using premium fuel and driving it for long distances at high revs, but this didn’t work.
I did a lot of research and compared different additives to find one that would stop this problem from happening again. It says that it is a 5-in-1 product that helps save fuel, restore peak performance, clean deposits, reduce wear, and stop corrosion.
I waited until I needed to fill up on Diesel and then poured the whole bottle into the tank before filling up so that it would mix easily with the Diesel. Then I drove my car somewhere to let the cleaner start working, even though it doesn’t say you have to.
Since then, I haven’t had any more problems, but it took four years for the carbon buildup to cause problems. The box says that you should add a bottle to the tank every 4000 miles, so I’ll do that and see if it works like it says it will.
There are a lot of good reviews and videos about this product online, which gives me hope. I don’t want to wait until I have a problem again; I’d instead try to stop deposits from hurting my car before they do. Hopefully, the carbon will slow down or even stop, and if I have any more carbon problems with the car, I will update this review.
Consumers Statistics Report


Where to buy GST76400EN Ultra 5 in 1 Petrol System Cleaner?
The GST76400EN Ultra 5 in 1 Petrol System Cleaner was produced in the UK by STP. It may be purchased in shops, on Canon’s official website, as well as online. The most recent time I searched, on May 23rd, 2022, I noticed that it could be purchased on Amazon for £11.99. Prices may go up or down over time. Simply follow the link provided below to get the necessary information. If you make a purchase after clicking on one of my links, please bear in mind that I may gain a commission on the sale.
Best Diesel Additive UK buying guide
Additives should improve the vehicle’s performance. In addition to higher fuel economy and performance, it also features reduced emissions and a longer engine lifespan.
Using them is simple. However, in most circumstances, you pour the liquid into an already full gasoline tank. There are a variety of ways to clean an engine’s combustion chamber. The most common is to use a carburetor or injectors with an additive in them.
On older engines with many miles on them that haven’t been taken care of or haven’t had regular maintenance, these add-ons tend to operate better than others. You won’t experience any gain if you’re driving a modern, well-maintained vehicle.
Types of Best Diesel Additive UK
To make an informed decision on which additive to utilize, you need to do some research beforehand. An internet search will reveal a plethora of options and their purported advantages.
For example, leaded petrol was withdrawn from sale in 2000 and LRP followed shortly after. If can manufacturer built your car before 1992, you’d need to get the engine converted to operate on unleaded fuel. However, a lead-free additive may be used instead of the original.
You may purchase fuel additives to protect diesel fuel from hardening, which might clog the fuel system if you reside in a location where it’s cold. You may also want to use an additional gasoline additive to keep your automobile running smoothly while in storage.
It’s possible that an engine flush can help you get a vehicle that hasn’t been driven for a long time back on the road. Any residue or crust that has accumulated in the fuel system over time should be loosened up by this procedure.
How can Best Diesel Additive UK help?
It would be best to steer clear of any fuel-saving additives, no matter how useful they may be in some instances and on some engines. A gasoline additive will cover whatever savings you obtain by driving more effectively, even if you genuinely want to save money.
In addition, Which? Testing has shown that these supplements don’t generally perform what they claim to do—increase your engine’s power. Some of them can increase petrol prices by 50 per cent. Most of these items claim to boost the octane rating of fuel, but none even came close to matching the octane rating of premium-grade gasoline.
Additive Alternatives
In reality, if you have a less than ten-year-old car that has been well taken care of, you don’t need any of these additives because you will already set up the car’s electronics and fuel system to give you the best mix of performance and efficiency. And if that’s true, it begs the question: if fuel additives are so good, why don’t car makers recommend them? And why don’t gas stations across the country have them more often?
Realistically speaking, they are. If you think your vehicle could use a little more oomph, you may consider using a higher octane forecourt gasoline rather than an additive. For just a few pence extra than conventional gas, supermarkets now sell regular 99 octanes, and significant fuel merchants make grand promises about how successful high-octane fuels are at ‘cleaning.’
Best Diesel Additive UK Final Words
It has been shown that fuel injector cleaners function on a wide range of automobiles and may significantly impact their performance. When it comes to improving the car’s performance, several options are available.
You may use all of our recommendations with a full gas or diesel fuel tank. Pour the cleaner into the tank first, then add water until the tank is full.
People who help us make a list of the Best Diesel Additive UK

Jonathan K. Choi, Editor in chief, Mojo Pro UK
In addition, I am the brains behind MojoPro.UK. As a blogger, I believe in delivering useful information to my audience. A lot of time and effort was invested in my education. You can join my social media accounts on Instagram, Twitter, and Tiktok. You may find me on Linkedin as well. Please do not hesitate to contact me via email if this is more convenient for you.