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Engine Cleaner Comparison - July 2025
| 1 Best Choice  9.7Exceptional | 2  9.5Excellent | 3  9.4Excellent | 4 Best Value  9.3Excellent | 5  9.2Excellent | 6  8.9Very Good |
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ModelLiqui Moly Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2037 | Model Chemical Guys Signature Series Orange Degreaser, Heavy-duty All-purpose Cleaner For Engines, Tires, Undercarriages & More, Professional Strength Formula, Breaks Down Grease, Oil & Grime - 16 fl oz | Model Gunk FEB1 Foamy Engine Brite Engine Degreaser - 17oz. | Model STP Ultra 5 In 1 Fuel System Cleaner and Stabilizer, Deep Cleans Fuel System and Fights Engine Friction, 12 FlOz | Model SONAX Engine Cleaner - Engine Degreaser - Easy Engine Cleaner - Engine Cleaner Spray - Engine Bay Cleaner 543200 16.9 fl oz | Model KRAKEN BOND Engine Cleaner Spray - (2x12.3 fl. Oz) Engine Degreaser for Engine Bay, Gunk, and Motor | 2 Pack |
BrandLiqui Moly | Brand Chemical Guys | Brand Gunk | Brand STP | Brand SONAX | Brand KRAKEN BOND |
Reviews | Reviews  | Reviews | Reviews | Reviews | Reviews  |
Features | |||||
Worth the money 9.4 | Worth the money 9.1 | Worth the money 9.4 | Worth the money 9.3 | Worth the money 8.9 | Worth the money 8.1 |
Simple to use 9.8 | Simple to use 9.4 | Simple to use 9.8 | Simple to use 9.6 | Simple to use 9.4 | Simple to use 8.9 |
Tech Specs | |||||
product dimensions 2.76 x 2.76 x 7.99 inches | product dimensions 8.66 x 2.36 x 2.36 inches | product dimensions 2.6 x 2.6 x 9.4 inches | product dimensions 1.65 x 7.99 x 3.82 inches | product dimensions - | product dimensions 2.55 x 2.55 x 9.25 inches 1.9 Pounds |
item weight 15.2 ounces | item weight 1.08 pounds | item weight 1.3 pounds | item weight 7 ounces | item weight 15.9 ounces | item weight - |
manufacturer part number 2037 | manufacturer part number CLD 201 16SW | manufacturer part number Gunk FEB1 | manufacturer part number 18410B | manufacturer part number 543200-755 | manufacturer part number - |
customer reviews4.7 4.7 out of 5 stars 7, 542 ratings 4.7 out of 5 stars | customer reviews 4.6 4.6 out of 5 stars 6, 499 ratings 4.6 out of 5 stars | customer reviews 4.5 out of 5 stars 1, 615 4.5 out of 5 stars | customer reviews 4.6 4.6 out of 5 stars 1, 483 ratings 4.6 out of 5 stars | customer reviews 4.5 4.5 out of 5 stars 491 ratings 4.5 out of 5 stars | customer reviews - |
model 2037 | model CLD 201 16 | model - | model - | model 543200-755 Engine Degreaser and Cleaner | model - |
Review | Review | Review - | Review - | Review | Review - |
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
9.5
2Chemical GuysChemical Guys Signature Series Orange Degreaser, Heavy-duty All-purpose Cleaner For Engines, Tires, Undercarriages & More, Professional Strength Formula, Breaks Down Grease, Oil & Grime - 16 fl oz
9.4 Simple to use9.1 worth the moneyWhy we love it
Powerful citrus-based cleaning action.
Versatile for multiple surfaces.
Highly concentrated for custom use.
Our ranking system
At BestChoice.com, our team curates a selection of top products from a vast array available online, using a sophisticated ranking system based on carefully defined criteria.While traditional hands-on testing has its merits, our use of AI technology offers distinct advantages. AI allows us to process and analyze vast amounts of data from multiple sources, providing a comprehensive view that goes beyond what manual testing can achieve. This approach enables us to deliver insights that are aligned with current trends and consumer preferences, ensuring our reviews are both relevant and up-to-date.
Features
Our AI-driven analysis examines key attributes, capabilities, and other critical factors tailored to each product category. This method allows us to assess effectiveness from various perspectives, ensuring a well-rounded evaluation.
Consumer Reviews
We aggregate and evaluate consumer feedback from across the internet, giving weight to ratings and reviews that reflect the most reliable insights. AI enhances this process by filtering and prioritizing data, offering a balanced view without the need for direct personal endorsements.
Popularity
Our system also considers the popularity of products, analyzing factors such as market presence, reputation, and user satisfaction. By leveraging AI, we capture a comprehensive picture of a product's standing in the market, which may not always be evident through traditional testing.
Value for money
AI allows us to compare products based on attributes like price, specifications, and user feedback, helping to determine their value for money. This data-driven approach offers an efficient and reliable way to assess how products stack up against one another in terms of cost-effectiveness.
