The Best Engine Stop Smoke Additive of 2023

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We ranked and reviewed the top 10 Best Engine Stop Smoke Additive in 2023. Read more How we ranked

Emily Sloyan
Oct 3, 2023 4:55 AM

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Bar's Leaks - 1000 Engine Repair - 16.9 oz

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SCORE
8.3
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Bar's Leaks

Features

Increases oil pressure

Reduces friction

Helps clean internal parts

Quiets noise

Reduces oil consumption

PROS

CONS

Bar's Leaks 1010 Engine Oil Stop Leak Concentrate, 11 oz, 1 Pack, Grey

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SCORE
8.2
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Bar's Leaks

Features

Stops and seals motor oil leaks

Works with all types of motor oil

Restores gaskets; seals to stop and prevent engine oil leaks

Compatible with vehicle type: Car

PROS

CONS

XADO ATOMEX Stop Leak Engine Oil Additive Sealer (Bottle, 250 ml) - Repair Gaskets & Seals Treatment

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SCORE
9.3
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
XADO

Features

Restores Elasticity And Stretch Ability Of Rubber Gaskets And Seals

Stops Oil Leakages From The Engine And Prevents Their Emerging In The Future

Eliminates The Need For Expensive Repair

Reduces Engine Noise and Oil Consumption

Compatible With Motor Oils Of All Types

PROS

CONS

Rislone 4447 Compression Repair with Ring Seal - 16.9 oz.

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SCORE
9.3
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Bar's Leaks

Features

Restores lost compression

Repairs blow-by

Frees sticky rings

Viscosity improver

Use on any gasoline or diesel engine

PROS

CONS

Bar's Leaks Oil Seal Engine Oil Burning and Leak Repair

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SCORE
7.0
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Bar's Leaks

Features

This premium quality synthetic blend works with all types of motor/engine oil including regular petroleum, high mileage, synthetic blends and fully synthetic formulas

Works in all gasoline and diesel engines including turbocharged, Eco Boost, hybrid and even racing engines, including 3, 4, 5, 6, 8 and 10 cylinder engines in all cars, trucks, vans and SUV's

Can also be used in heavy-duty applications as well as tractors, boats, RV's, motorcycles (including wet clutch), ATV's, lawn equipment

In most cases the oil leak issue will be repaired with a single dosage. However, for best results and to prevent the problems from reoccurring, use with every other oil change, or once per year

Use 1/2 bottle for smaller systems (3. 5 - 4. 4 quarts of oil), in larger systems use 1 bottle for every 6 quarts, in small engines use approximately 3oz to every quart of oil

PROS

CONS

Bardahl 2117 No Smoke + StopLeak - 16 fl. oz.

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SCORE
9.2
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Bardahl

Features

Stops oil leaks, restores seal pliability, seals empty spaces, and reduces friction

Prevents oil burning and excessive exhaust smoke

Quiets noisy lifters and decreases engine noise

Lowers emissions and harmful pollutants

Improves compression and restores performance

PROS

CONS

Bardahl 2116 No Smoke - 16 fl. oz.

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SCORE
8.6
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Bardahl

Features

Stops oil burning and excessive exhaust smoke

Seals empty spaces and reduces friction

Quiets noisy lifters and decreases engine noise

Lowers emissions and harmful pollutants

Improves compression and restores performance

PROS

CONS

WYNNS Stop Smoke Oil ADDITIVE Petrol Diesel Engines Reduce Exhaust Smoke

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SCORE
8.7
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
WYNNS

Features

Reduces exhaust smoke due to oil burning.

Improves the viscosity properties of the oil at high oil temperatures.

Seals the gaps between worn engine components.

Improves compression and engine performance.

Reduces engine noise and Ensures a strong protective oil film under high temperature conditions.

PROS

CONS

Lucas Oil 10278 Engine Oil Stop Leak, 1 Quart

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SCORE
8.2
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Lucas Oil

Features

Compatible with petroleum, semi-synthetic and full synthetic motor oils

Renews worn seals with no risk of damage or eventual corrosion

Reduces engine noise and oil consumption, while raising oil pressure

Contains no harmful solvents

PROS

CONS

BlueDevil Products 00243 Stop Smoke & Engine Repair - 16 Ounce,1 Pack

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SCORE
7.9
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
BlueDevil Products

Features

Product Type :Auto Accessory

Package Dimensions :7.437" L X5.875" W X7.937" H

Country Of Origin :United States

Package Weight :10.0Lbs

PROS

CONS

Last update on 2023-10-03 / Prices / Affiliate links / Images, and Product Highlights from Amazon Product Advertising API

Editor's Notes

We ranked and reviewed the top 10 Best Engine Stop Smoke Additive in 2023. With the support of 40,950 customer's reviews, we hope that this article can give you the most realistic view of these products. The list below contains some main brands as bars-leaks, xado, bardahl, wynns, lucas-oil, bluedevil-products.