Advertising Disclosure Petrol Additives For Petrol Engines Comparison - October 2025
6 Best Petrol Additives For Petrol Engines In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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| 1 Best Choice  9.8Exceptional | 2  9.7Exceptional | 3  9.6Exceptional | 4  9.5Excellent | 5 Best Value  9.3Excellent | 6  9.2Excellent |
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ModelWynn's Formula Gold High-Performance Petrol System Treatment - Enhances Engine Efficiency - Improves Acceleration & Reduces Noise - Cleans & Protects Fuel Injection System - 500ml | Model Briggs & Stratton Fuel Fit Additive/Stabiliser. 992381 | 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 Redex Petrol System Cleaner 250ml, Petrol Injector Cleaner To Remove Harmful Deposits, Maximise Performance & Increase Fuel Economy With Redex Fuel Additives For Petrol Engines, Suitable For Hybrids | Model Wynn's Xtreme Petrol System Cleaner - Complete Fuel System Cleaner - Restores Fuel Economy & Engine Performance - Prevents Turbo, EGR & Catalytic Converter Issues - 325ml | Model STP 50500EN 500ml Complete Fuel System Cleaner for Petrol Engines |
BrandWynn's | Brand UPMSX | Brand STP | Brand Redex | Brand Wynn's | Brand STP |
Reviews | Reviews | Reviews | Reviews  | Reviews | Reviews |
Features | |||||
Worth the money 9.9 | Worth the money 9.4 | Worth the money 9.4 | Worth the money 9.4 | Worth the money 9.1 | Worth the money 9.3 |
Simple to use 9.9 | Simple to use 9.6 | Simple to use 9.9 | Simple to use 9.9 | Simple to use 9.1 | Simple to use 9.4 |
Distance 9.8 | Distance 9.1 | Distance 9.1 | Distance 9.1 | Distance 9.1 | Distance 8.9 |
Tech Specs | |||||
customer reviews4.5 4.5 out of 5 stars 303 ratings 4.5 out of 5 stars | customer reviews 4.6 4.6 out of 5 stars 2, 757 ratings 4.6 out of 5 stars | customer reviews - | customer reviews 4.6 4.6 out of 5 stars 5, 723 ratings 4.6 out of 5 stars | customer reviews 4.5 4.5 out of 5 stars 173 ratings 4.5 out of 5 stars | customer reviews - |
product dimensions 5 x 9 x 24 cm 0.5 g | product dimensions - | product dimensions 6 x 3 x 15 cm 400 g | product dimensions 7 x 4.3 x 176 cm 226.8 g | product dimensions - | product dimensions - |
manufacturer part number 70701 | manufacturer part number - | manufacturer part number - | manufacturer part number RADD1101A | manufacturer part number 29764 | manufacturer part number - |
model Wynn's 70701, Formula Gold Petrol, 500 ml | model - | model - | model LOYRADD1101A | model Wynn's 29764, Xtreme Petrol System Clean, 325 ml | model - |
item weight- | item weight 270 g | item weight - | item weight 227 g | item weight 300 g | item weight - |
package dimensions- | package dimensions 19.2 x 9.4 x 4.2 cm 270 g | package dimensions - | package dimensions - | package dimensions 21.6 x 8.5 x 4.5 cm 300 g | package dimensions 23.5 x 13.2 x 8 cm 490 g |
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
9.8
1Wynn'sWynn's Formula Gold High-Performance Petrol System Treatment - Enhances Engine Efficiency - Improves Acceleration & Reduces Noise - Cleans & Protects Fuel Injection System - 500ml
9.9 worth the money9.9 Simple to use9.8 distanceWhy we love it
Boosts engine performance instantly.
Improves fuel efficiency significantly.
Reduces harmful emissions effectively.
-
9.6
3STP
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 use9.4 worth the money9.1 distanceWhy we love it
Boosts engine performance effectively.
Improves fuel economy noticeably.
Protects engine components reliably.
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.
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.
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.
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.
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.
