10 Best additives of 2025

Save up to 13% off

Best Choice

1

Liqui Moly
LIQUI MOLY Oil Additive Cera Tec 20002 Ceramic Wear & Tear Protection for Petrol & Diesel Engines Smoother Engine Performance, Less Friction & Lower Fuel Consumption 300 ml
Main highlights

Superior Wear Protection
Stable under high loads; reduces wear and tear in engines.

Versatile Application
Ideal for petrol and diesel engines; compatible with all motor oils.

Customer-Praised Noise Reduction
Commonly praised for reducing engine noise and improving smoothness.
Key specs
- performance:Stable under high loads
- engine protection:No deposits
- compatibility:Compatible with all oils
- friction reduction:N/A
- viscosity:N/A
9.9

Exceptional

Our Rating

9.5
Long life

9.3
worth the money

9.3
Noise level
How do we rank?

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Careful review Our team ensures quality, value, and fit based on real user feedback

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Based on millions of stores and reviews

Shoppers influence our rankings
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Value for Money

2

TropiClean
TropiClean Fresh Breath Water Additive for Dogs, Dog Breath Freshener and Teeth Cleaning Solution, No Toothpaste or Toothbrush Required, 33.8oz.
Main highlights

Fresh Breath in 14 Days
Rid your furry friend of stinky dog breath in 14 days or less.

Ideal for Sensitive Stomachs
Dogs with sensitive stomachs should start with half dose.

Odorless and Effective
Customers praise its odorless nature and quick breath improvement.
9.6

Exceptional

Our Rating

9.3
Odor elimination

9.1
Simple to use

8.9
quality of ingredients
3

Lubegard
Lubegard 19610 Instant Shudder Fix
Main highlights

Instant Shudder Elimination
Lubegard 19610 instantly eliminates torque converter shudder for smoother rides.

Ideal for Quick Fixes
Perfect for temporary relief of transmission shudder issues.

Praised for Immediate Effectiveness
Customers appreciate its immediate impact on transmission performance.
9.4

Excellent

Our Rating

9.5
worth the money

9.3
distance
4

Skyhorse
A Consumer's Guide to Toxic Food Additives: How to Avoid Synthetic Sweeteners, Artificial Colors, MSG, and More

13% Off
Main highlights

Comprehensive Guide to Avoiding Additives
Provides detailed insights on avoiding synthetic sweeteners, artificial colors, MSG, and more.

Ideal for Health-Conscious Individuals
Perfect for those looking to eat clean and understand food additives.

Praised for Easy Language
Highly appreciated for its easy-to-understand language by readers.
Key specs
- paperback:216 pages
- isbn 10:1510753761
- language:English
- isbn 13:978-1510753761
- dimensions:5.5 x 0.7 x 8.25 inches
9.2

Excellent

Our Rating

9.9
Simple to use

9.7
worth the money

9.5
Instruction
5

Skyhorse

Badditives!: The 13 Most Harmful Food Additives in Your Diet?and How to Avoid Them
9.1

Excellent

Our Rating
See Today’s Deals & Prices
6

STA-BIL
STA-BIL Storage Fuel Stabilizer | Keeps Fuel Fresh for 24 Months, Prevents Corrosion, Gasoline Treatment Fuel Additive that Protects Fuel System, Gas Stabilizer for Fuel Storage, 32 oz.
Main highlights

Fuel Freshness for 24 Months
Preserves fuel freshness for up to 24 months, perfect for long-term storage.

Ideal for Seasonal Equipment
Perfect for storing vehicles, lawnmowers, and generators during off-season.

Highly Praised for Easy Starts
Users frequently commend its ability to ensure smooth engine starts.
8.9

Very Good

Our Rating

9.5
Simple to use

9.3
worth the money

8.0
dispense easily
7

Liqui Moly
Liqui Moly MoS2 Anti-Friction Engine Treatment | 300 ml | Oil additive | SKU: 2009
Main highlights

High Load-Bearing Film
Forms a durable lubricant layer on all friction surfaces.

Ideal for High Mileage Engines
Perfect for engines needing smoother operation at high RPMs.

Noise Reduction Praised
Customers highlight significant reduction in engine noise and vibration.
Key specs
- performance:Improves engine sound
- engine protection:Anti-friction
- compatibility:Universal fit
- friction reduction:High load-bearing film
- viscosity:N/A
8.8

Very Good

Our Rating

9.7
worth the money

9.1
Long life

9.1
distance
8

Heet
Heet Iso-HEET Water Remover And Premium Fuel Line Antifreeze + Injector Cleaner Helps Increase Gas Mileage Improves Engine Performance Year Round Performance, 12 fl. oz. (28202) , Red
Main highlights

Superior Water Absorption
Absorbs 5 times more water than regular gas dryers.

Year-Round Engine Care
Ideal for all 2-cycle and 4-cycle gas and diesel engines.

Enhanced Engine Performance
Customers praise improved engine power and smoother operation.
8.7

Very Good

Our Rating

9.9
worth the money

9.9
Simple to use

9.9
sweat control
9

YGDMD

YGDMD 2025 Upgraded Magnetic Diesel Additive Holder,Leak-Proof & Portable Magnetic Bottle Holder for Secure Fixing,Universal Car Organizer for Diesel Additive for Most Vehicles (Magnetic Type)
8.6

Very Good

Our Rating
10

Oxyfresh
Oxyfresh Premium Pet Dental Care Solution Pet Water Additive: Best Way to Eliminate Bad Dog Breath and Cat Bad Breath - Fights Tartar & Plaque - So Easy, Just Add to Water! Vet Recommended 16 oz.
Main highlights

Fresh Breath Solution
Eliminates bad breath in pets with a fast-acting, easy-to-use water additive.

Hassle-Free Dental Care
Ideal for pet owners seeking an effortless way to maintain oral hygiene without brushing.

Customer Praised Effectiveness
Most users report significant improvement in pet breath and dental health.
Key specs
- Target Species:Dogs and cats
- Form:Liquid
- Dental Benefits:Fights plaque and tartar
- Packaging:2.52 x 2.52 x 7.8 inches
- Flavor:Odorless and tasteless
8.4

Good

Our Rating

9.5
Simple to use

8.9
Aroma

8.7
Flavor

10 Best additives of 2025

1

LIQUI MOLY Oil Additive Cera Tec 20002 Ceramic Wear & Tear Protection for Petrol & Diesel Engines Smoother Engine Performance, Less Friction & Lower Fuel Consumption 300 ml

9.5

9.3

9.3

How do we rank?

How do we rank?

Analyzing top stores

2

TropiClean Fresh Breath Water Additive for Dogs, Dog Breath Freshener and Teeth Cleaning Solution, No Toothpaste or Toothbrush Required, 33.8oz.

9.3

9.1

8.9

3

Lubegard 19610 Instant Shudder Fix

9.5

9.3

4

A Consumer's Guide to Toxic Food Additives: How to Avoid Synthetic Sweeteners, Artificial Colors, MSG, and More

9.9

9.7

9.5

5

Badditives!: The 13 Most Harmful Food Additives in Your Diet?and How to Avoid Them

6

STA-BIL Storage Fuel Stabilizer | Keeps Fuel Fresh for 24 Months, Prevents Corrosion, Gasoline Treatment Fuel Additive that Protects Fuel System, Gas Stabilizer for Fuel Storage, 32 oz.

9.5

9.3

8.0

7

Liqui Moly MoS2 Anti-Friction Engine Treatment | 300 ml | Oil additive | SKU: 2009

9.7

9.1

9.1

8

Heet Iso-HEET Water Remover And Premium Fuel Line Antifreeze + Injector Cleaner Helps Increase Gas Mileage Improves Engine Performance Year Round Performance, 12 fl. oz. (28202) , Red

9.9

9.9

9.9

9

YGDMD 2025 Upgraded Magnetic Diesel Additive Holder,Leak-Proof & Portable Magnetic Bottle Holder for Secure Fixing,Universal Car Organizer for Diesel Additive for Most Vehicles (Magnetic Type)

10

Oxyfresh Premium Pet Dental Care Solution Pet Water Additive: Best Way to Eliminate Bad Dog Breath and Cat Bad Breath - Fights Tartar & Plaque - So Easy, Just Add to Water! Vet Recommended 16 oz.

9.5

8.9

8.7

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