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Fuel Injection Cleaner Comparison - April 2026

7 Best Fuel Injection Cleaner In the UK

1
Best Choice
9.9Exceptional
2
9.8Exceptional
3
9.7Exceptional
4
9.6Exceptional
5
Best Value
9.4Excellent
6
9.2Excellent
7
9.1Excellent
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Model

STP Ultra 5 in 1 Petrol System Cleaner 400ml, Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK
Model
STP Ultra 5 in 1 Petrol System Cleaner 400ml, Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK
Model
Liqui Moly 1803 Injection Cleaner 300ml
Model
Liqui Moly 1803 Injection Cleaner 300ml
Model
Redex Petrol System Cleaner 250ml, Petrol Injector Cleaner To Remove Harmful Deposits, Maximise Performance & Increase Fuel Economy Fuel Additives For Petrol Engines, Suitable For Hybrids
Model
Redex Petrol System Cleaner 250ml, Petrol Injector Cleaner To Remove Harmful Deposits, Maximise Performance & Increase Fuel Economy Fuel Additives For Petrol Engines, Suitable For Hybrids
Model
LM 5153 Pro-Line Fuel injection Cleaner 500 ml

Brand

STP
Brand
STP
Brand
Liqui Moly
Brand
Liqui Moly
Brand
Redex
Brand
Redex
Brand
Liqui Moly

Reviews

10,442 reviews
Reviews
10,442 reviews
Reviews
5,156 reviews
Reviews
5,156 reviews
Reviews
11,446 reviews
Reviews
11,446 reviews
Reviews
1,290 reviews

Features

Worth the money

9.4
Worth the money
9.4
Worth the money
9.4
Worth the money
9.4
Worth the money
9.4
Worth the money
9.4
Worth the money
8.6

Simple to use

9.9
Simple to use
9.9
Simple to use
9.9
Simple to use
9.9
Simple to use
9.9
Simple to use
9.9
Simple to use
9.1

Distance

9.1
Distance
9.1
Distance
9.1
Distance
9.1
Distance
9.1
Distance
9.1
Distance
8.4

Tech Specs

product dimensions

‎6 x 3 x 15 cm; 400 g
product dimensions
‎6 x 3 x 15 cm; 400 g
product dimensions
‎12 x 6 x 6 cm; 300 g
product dimensions
‎12 x 6 x 6 cm; 300 g
product dimensions
7 x 4.3 x 176 cm 226.8 g
product dimensions
7 x 4.3 x 176 cm 226.8 g
product dimensions
73.2 x 26.8 x 26.01 cm 404 g

manufacturer part number

‎GST76400EN
manufacturer part number
‎GST76400EN
manufacturer part number
‎1803
manufacturer part number
‎1803
manufacturer part number
RADD1101A
manufacturer part number
RADD1101A
manufacturer part number
5153

item weight

‎400 g
item weight
‎400 g
item weight
‎300 g
item weight
‎300 g
item weight
227 g
item weight
227 g
item weight
404 g

special features

‎Concentrated
special features
‎Concentrated
special features
‎Car
special features
‎Car
special features
With the addition of 1 shot of Redex Petrol System Cleaner in each tank, any vehicles manufactured before 2011 can still use E10 Petrol safely, along with the additional benefits of reduced emissions, cleaned injectors, saving fuel and restored performance
special features
With the addition of 1 shot of Redex Petrol System Cleaner in each tank, any vehicles manufactured before 2011 can still use E10 Petrol safely, along with the additional benefits of reduced emissions, cleaned injectors, saving fuel and restored performance
special features
-

model

‎ST76400EN
model
‎ST76400EN
model
-
model
-
model
LOYRADD1101A
model
LOYRADD1101A
model
5153

Available On

Available On
Available On
Available On
Available On
Available On
Available On

Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.9
    1
    STP
    16% Off

    STP Ultra 5 in 1 Petrol System Cleaner 400ml, Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK

    9.9 Simple to use
    9.4 worth the money
    9.1 distance

    Why we love it

    Boosts engine performance effectively.
    Improves fuel economy noticeably.
    Protects engine components reliably.
  • 9.8
    2
    STP
    16% Off

    STP Ultra 5 in 1 Petrol System Cleaner 400ml, Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK

    9.9 Simple to use
    9.4 worth the money
    9.1 distance

    Why we love it

    Boosts engine performance effectively.
    Improves fuel economy noticeably.
    Protects engine components reliably.
  • 9.7
    3
    Liqui Moly

    Liqui Moly 1803 Injection Cleaner 300ml

    9.9 Simple to use
    9.4 worth the money
    9.1 distance

    Why we love it

    Removes engine deposits effectively.
    Improves engine performance noticeably.
    Easy to mix with fuel anytime.

Our ranking system

The topchoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria.We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. topchoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.

Features

Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.
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Consumer Reviews

We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.
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Popularity

Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.
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Value for money

topchoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.

When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.