Engine stop smoke additive is an essential product for vehicle owners looking to reduce exhaust smoke and improve engine performance. These additives work by sealing worn piston rings and valve guides, effectively minimizing oil consumption and smoke emissions. In 2025, the market offers a variety of top-rated options that cater to different engine types and conditions. From high-mileage vehicles to those experiencing minor leaks, the best engine stop smoke additives can help restore engine efficiency and prolong its lifespan. Choosing the right additive can make a significant difference in your vehicle's performance and emissions.
Bardahl 2117 NoSmoke + StopLeak Motor Oil Additive - Treatment for Oil Burning & Excessive Exhaust Smoke - Engine Oil Leak Sealer - Stop Smoke & Quiet Noisy Engines While Restoring Engines - 16 fl oz
- NO MORE BURNING OIL: Stop your engine from oil burning with the enhanced NoSmoke + StopLeak motor oil additive! Bardahl NoSmoke oil additive gives you top-quality protection and restoration for old engines by "filling in" loose tolerances with an extra-thick formula that reduces oil burning and excessive exhaust smoke. This engine additive stop oil burning solution ensures your vehicle runs cleaner and smoother.
- LEAK SEALER: NoSmoke + StopLeak doesn't just reduce burn; it helps seal empty spaces that develop in engines over the years, acting as an engine oil leak sealer to reduce engine noise and quiet noisy lifters. It even helps restore the reliability of dry, brittle seals to stem further oil leaks. Your car won't just run better; it'll sound better too. Stop the smoke and the noise with this effective stop leak oil additive!
- CONTROL EMISSIONS: As engines loosen, smoke and pollutants released in exhaust can increase over time, so a car that would have once passed emission standards might slip below acceptable levels. NoSmoke oil additive with StopLeak can not only help reduce or eliminate smoke, but it can also cut down on pollutants released in exhaust to help meet emissions standards. This no smoke oil additive is perfect for maintaining cleaner emissions and protecting your engine.
- MAINTAIN AND IMPROVE: Bardahl's NoSmoke + StopLeak is the best motor oil additive for older cars. Not only will it help reduce wear and improve the function of your engine, but it can also restore lost performance and help improve compression over time. Use the best engine oil additive to maintain your car's longevity when you use NoSmoke! This oil additive for car engine treatment is a must-have for any aging vehicle.
- A NAME YOU CAN TRUST: For over 85 years, Bardahl has been based in America, making the best oil additive motor products for car engines. We're a family-owned and operated company, and we pride ourselves on producing the finest products on the marketplace while developing industry-leading innovations in engine additive solutions.
$14.99
Liqui Moly Oil Smoke Stop 300 ml (2122) Designed to minimize Blue Exhaust Smoke
- Very high viscosity, seals the gaps caused by wear in the internal parts of the engine
- Suitable for all oils usually used in petrol and diesel engines
- Additive specially formulated to remove the blue smoke of engines that burn oil
- Particularly effective and recommended for old, worn engines subjected to high loads and high temperature
$17.95
Engine Wizard Engine Treatment (3 oz) - Stop Leaks and Smoke without Needing to Dismantle
- Quickly Fixes Oil Leaks: Often resolving the issue within just 30 miles of driving. Includes online customer support to help diagnose your leak problem through photos.
- Eliminate Blue Smoke: Resolves blue smoke issues within seconds, delivering noticeable improvement for oil loss problems. If the issue persists, we offer a 100% refund—guaranteed.
- No More Chaos: Say goodbye to constantly topping off oil! Effectively reduces oil leaks and burning oil issues, significantly minimizing oil loss and keeping your engine running smoothly.
- Highly Flexible: Compatible with 3, 4, 5, 6, 8, and 10-cylinder engines across all cars, trucks, vans, and SUVs. Whether it's black smoke issues or excessive oil consumption, this product delivers remarkable improvements.
- Easy Application: Simply add Engine Wizard to your engine oil for a hassle-free way to maintain and extend the life of your vehicle's engine.
$59.99
BlueDevil Products 00243 Stop Smoke & Engine Repair - 16 Ounce
- Product Type :Auto Accessory
- Package Dimensions :7.437" L X5.875" W X7.937" H
- Country Of Origin :United States
- Package Weight :10.0Lbs
$38.17
SALE
−$1.00
Lucas Oil Products LUC10278 Engine Oil Stop Leak, 1 Quart, 1 Pack
- Product Type: Auto Oil
- Package Dimensions: 8.89 L X 10.16 W X 30.48 H (Centimeters)
- Package Weight: 0.953 Kilograms
- Country Of Origin: United States
$10.99
SALE
−$13.00
Clements Trading Ltd Forte Seal Conditioner Twin Pack - Engine Oil Additive to Fix Valve seals, Reduce Smoke from the exhaust on acceleration & Stop oil Leaks (2)
- FIX LEAKS FAST: Forte Seal Conditioner contains ceramic nanoparticles that swell seals, helping stop minor oil leaks around valve stem seals, gaskets, and O-rings within 100 miles.
- SMOKE BE GONE: The same technology that fixes leaks also conditions seals to slide smoothly, reducing smoke caused by worn or drying seals shedding material into the combustion chamber.
- JUST TWO OUNCES: Simply add the entire 2oz bottle of Forte Seal Conditioner to your engine oil at your next oil change. No special tools or downtime required.
- MONEY IN YOUR POCKET: Avoid costly repairs by fixing minor leaks and smoke yourself with this simple additive instead of replacing problem seals.
- TRUSTED BY MECHANICS: Mechanics, racers, and gear-heads have relied on Forte Seal Conditioner for over a decade to revive seals, stop leaks, and eliminate smoke problems on a wide range of engines.
$47.00
SALE
−$5.93
BlueDevil Products 00243 Stop Smoke & Engine Repair - 16 Ounce (Pack of 6)
- Reduces Oil Loss
- Stops exhaust smoke
- Revitalizes Worn & Damaged Seals
- Safe to use in any vehicle engine
$98.87
Engine Oil Stop Leak Engine stop smoke restore seals and gaskets
- Effective and safe formula
- Stops engine oil leaks and seals gaskets gap
- Prevents oil burning and excessive exhaust smoke
- Works with all Gasoline, LPG & Diesel engines
- Improves engine oil viscosity properties
$14.99
Anti-Wear Engine Treatment Oil Additive, 2pcs Highly Effective Engine Anti-Wear Protectant, Wondeea Engine Anti-Wear Protectant, Transmission Fluid Additive for Car, Noise Reduction and Shaking Cure
- 【Premium Anti-Wear Engine Oil Additive】: Engineered to safeguard your vehicle's heart, this premium Engine Anti-Wear Protectant enhances engine performance, reduces wear and tear, and prolongs your engine's lifespan. Whether you drive a daily commuter or a high-performance vehicle, this protectant is the ultimate solution to ensure your engine runs smoother and longer.
- 【Highly Effective Engine Anti-Wear Protectant】: Our hEngine Oil Additive is specially formulated to create a protective barrier on vital engine components, reducing friction and minimizing wear during operation.
- 【Enhanced Performance】: Experience Improved Engine Efficiency, Smoother Acceleration, And Increased Horsepower As A Result Of Reduced Friction And Heat Generation.
- 【High Efficiency and Long-Lasting Protection】: Compared to various anti-wear agents on the market, this additive offers high viscosity and excellent adhesion, providing effective gear protection and wear reduction, contributing to better fuel economy and extended engine durability.
- 【Versatile Compatibility】: Suitable for use in both gasoline engines and compatible with both conventional and synthetic motor oils, this additive is a versatile choice for a wide range of vehicles, whether you drive a daily vehicle or a high-performance car.
$13.88
SALE
−$0.84
Prestone Stop Leak Additive Engine Oil 12 oz bottle
- Rapidly halts leaks by rejuvenating seals that have become hardened or shrunken. Provides extended engine protection, lasting twice as long as traditional oil-based stop leak solutions. Compatible with all types of motor oils, including synthetic, conventional, and high mileage variants.
- Container type: Bottle
- Liquid volume: 12.0 fluid_ounces
$9.15
Last update on 2025-05-03 / Affiliate links / Images from Amazon Product Advertising API