Advertising Disclosure Petrol Additives For Petrol Engines Comparison - April 2026
7 Best Petrol Additives For Petrol Engines In the UK
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| 1 Best Choice  9.9Exceptional | 2 9.8Exceptional | 3  9.6Exceptional | 4 9.4Excellent | 5 Best Value  9.3Excellent | 6 9.2Excellent | 7  9.0Excellent |
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ModelSTA-BIL Storage Fuel Stabilizer - Keeps Fuel Fresh For Up To Two Years, Effective In All Gasoline Including All Ethanol Blended Fuels, For Quick, Easy Starts, Treats Up To 40 Gallons, 16oz (22207),Red | Model STA-BIL Storage Fuel Stabilizer - Keeps Fuel Fresh For Up To Two Years, Effective In All Gasoline Including All Ethanol Blended Fuels, For Quick, Easy Starts, Treats Up To 40 Gallons, 16oz (22207),Red | Model Wynn's Formula Gold High-Performance Petrol System Treatment - Enhances Engine Efficiency - Improves Acceleration & Reduces Noise - Cleans & Protects Fuel Injection System - 500ml | Model Wynn's Formula Gold High-Performance Petrol System Treatment - Enhances Engine Efficiency - Improves Acceleration & Reduces Noise - Cleans & Protects Fuel Injection System - 500ml | 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 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 |
BrandSTA-BIL | Brand STA-BIL | Brand Wynn's | Brand Wynn's | Brand STP | Brand STP | Brand Redex |
Reviews | Reviews | Reviews | Reviews  | Reviews | Reviews | Reviews |
Features | ||||||
Worth the money 9.8 | Worth the money 9.6 | Worth the money 9.9 | Worth the money 9.9 | Worth the money 9.4 | Worth the money 9.4 | Worth the money 9.4 |
Simple to use 9.9 | Simple to use 9.8 | 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 |
Distance 9.6 | Distance 9.4 | Distance 9.8 | Distance 9.8 | Distance 9.1 | Distance 9.1 | Distance 9.1 |
Tech Specs | ||||||
product dimensions45.72 x 114.3 x 2344.42 cm; 435.45 g | product dimensions 45.72 x 114.3 x 2344.42 cm; 435.45 g | product dimensions 4.9 x 8.8 x 25.6 cm; 0.5 g | product dimensions 4.9 x 8.8 x 25.6 cm; 0.5 g | product dimensions 6 x 3 x 15 cm; 400 g | product dimensions 6 x 3 x 15 cm; 400 g | product dimensions 7 x 4.3 x 176 cm 226.8 g |
manufacturer part number22207 | manufacturer part number 22207 | manufacturer part number 70701 | manufacturer part number 70701 | manufacturer part number GST76400EN | manufacturer part number GST76400EN | manufacturer part number RADD1101A |
modelSTA-BIL | model STA-BIL | model Wynn's 70701, Formula Gold Petrol, 500 ml | model Wynn's 70701, Formula Gold Petrol, 500 ml | model ST76400EN | model ST76400EN | model LOYRADD1101A |
item weight435 g | item weight 435 g | item weight - | item weight - | item weight 400 g | item weight 400 g | item weight 227 g |
special featuresDIRECTIONS – Bottle Directions: To measure small quantities: remove small cap and seal (on long neck), squeeze bottle to desired level, and pour. To measure large quantities: remove large cap and seal, pour (measurements on bottle side). Usage Directions: 1 oz (30 mL) treats up to 2.5 gallons (9.5 L) of fuel. Use STA-BIL only with fresh fuel and keep gas can or tank 95% full to avoid condensation build up during storage. Run engine for 5 minutes after adding product to treat entire fuel system., ENSURES QUICK, EASY STARTS – Treating your gas with this fuel stabilizer prevents gum, varnish, rust, and corrosion in your fuel tank, all of which are costly to repair. The 16 oz. bottle of this alcohol-free fuel additive treats up to 40 gallons of fuel, and it is perfect to use prior to storing either your vehicle or outdoor power equipment for an extended period., STORAGE – STA-BIL Storage Fuel Stabilizer eliminates the need to drain fuel and keeps gasoline fresh for up to 24 months. Never fear your car or small engine refusing to start due to fouled fuel. This product is effective in all gasoline and ethanol blended fuels including E-10 through E-85., VERSATILE – STA-BIL Storage Fuel Stabilizer is safe for use in all gasoline engines, including 2-cycle. Use this fuel treatment in your vehicle, motorcycle, lawn mower, snow blower, boat, and generator. | special features DIRECTIONS – Bottle Directions: To measure small quantities: remove small cap and seal (on long neck), squeeze bottle to desired level, and pour. To measure large quantities: remove large cap and seal, pour (measurements on bottle side). Usage Directions: 1 oz (30 mL) treats up to 2.5 gallons (9.5 L) of fuel. Use STA-BIL only with fresh fuel and keep gas can or tank 95% full to avoid condensation build up during storage. Run engine for 5 minutes after adding product to treat entire fuel system., ENSURES QUICK, EASY STARTS – Treating your gas with this fuel stabilizer prevents gum, varnish, rust, and corrosion in your fuel tank, all of which are costly to repair. The 16 oz. bottle of this alcohol-free fuel additive treats up to 40 gallons of fuel, and it is perfect to use prior to storing either your vehicle or outdoor power equipment for an extended period., STORAGE – STA-BIL Storage Fuel Stabilizer eliminates the need to drain fuel and keeps gasoline fresh for up to 24 months. Never fear your car or small engine refusing to start due to fouled fuel. This product is effective in all gasoline and ethanol blended fuels including E-10 through E-85., VERSATILE – STA-BIL Storage Fuel Stabilizer is safe for use in all gasoline engines, including 2-cycle. Use this fuel treatment in your vehicle, motorcycle, lawn mower, snow blower, boat, and generator. | special features - | special features - | special features Concentrated | special features Concentrated | 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 |
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
1STA-BILSTA-BIL Storage Fuel Stabilizer - Keeps Fuel Fresh For Up To Two Years, Effective In All Gasoline Including All Ethanol Blended Fuels, For Quick, Easy Starts, Treats Up To 40 Gallons, 16oz (22207),Red
9.9 Simple to use9.8 worth the money9.6 distanceWhy we love it
Keeps fuel fresh for up to 24 months.
Prevents costly repairs by avoiding fuel system damage.
Versatile use in various gasoline engines.
-
9.8
2STA-BIL
STA-BIL Storage Fuel Stabilizer - Keeps Fuel Fresh For Up To Two Years, Effective In All Gasoline Including All Ethanol Blended Fuels, For Quick, Easy Starts, Treats Up To 40 Gallons, 16oz (22207),Red
9.8 Simple to use9.6 worth the money9.4 distanceWhy we love it
Keeps fuel fresh for up to 24 months.
Prevents costly repairs by avoiding fuel system damage.
Versatile use in various gasoline engines.
-
9.6
3Wynn's
Wynn'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.
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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.
