1
Editor's Choice
Liqui Moly 8367 20004 Hydraulic Lifter Additive 300 Ml
LIQUI MOLYBrand
8367Model
2.36H*4.72L*2.36W inchesDimension
0.66 lbWeight
Ranked #20 in Best Hydraulic Valves Of 2024
9.7We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Excellent
Price: $
FreeShipping
Visit Store » Amazon.com ( 4.68 / 5 )
Features
2
Editor's Choice
Bar'S Leaks 1000 High Mileage Engine Repair-It
BAR'S LEAKSBrand
1000Model
1.35H*7.41L*2.85W inchesDimension
1.05 lbWeight
Ranked #8 in Best Oil Leak Additives Of 2024
9.5We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Excellent
Price: $
Save 13% + FreeShipping
Visit Store » Amazon.com ( 4.68 / 5 )
Features
- RESTORES PERFORMANCE - Contains a combination of the best performance additives to repair the most common oil-related problems
- INCREASES COMPRESSION AND HORSEPOWER - Restores lost compression and power, reduces noise and oil consumption, while improving the performance of worn cylinders, rings, bearings, and seals
- STOPS LEAKS, NOISE, AND SMOKING - For most vehicles, this is your last chance before paying an expensive repair bill or replacing the vehicle
- FRICTION MODIFIERS - Engine Repair can be used to top off the existing oil when low, or add a bottle when changing the oil and filter
- REPAIR-IT - Engine Repair-It can be used to top off existing oil when low or add a bottle when changing oil.
3
Editor's Choice
Tribotex SYX120 Nano Oil Additive Car Engine Treatment: Add To Engine Lube
TRIBOTEXBrand
syx120Model
0.7H*6.95L*1.15W inchesDimension
9.3We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Excellent
Price: $$$
FreeShipping
Visit Store » TriboTEX ( 4.83 / 5 )
Features
- GROUNDBREAKING - Made in the USA TriboTEX is a revolutionary engine oil additive. It contains synthetic nanoparticles developed with funding from the U.S. Department of Energy, NASA, & the National Science Foundation.
- QUIETER & SMOOTHER PERFORMANCE - Reverses wear in bearings by building a diamond-like carbon coating.
- UNIVERSAL - Compatible with all types of motor oil and can be used in gas or diesel engines. Use for both old and new cars. It is an excellent engine booster.
- EFFICIENT - Our masterfully engineered engine treatment improves fuel consumption and reduces engine noise. It is time to improve your engine and take your driving experience to a new level.
- GUARANTEED QUALITY - We know you will be delighted with this ground-breaking technology. Our treatment comes with a 100% satisfaction guarantee.
4
Dura Lube HL-41705-04 Severe Instant Quiet Helps Silence Engine And Transmission Noise
DURA LUBEBrand
HL-41705-04Model
7.5H*2.12L*2.12W inchesDimension
0.5 lbWeight
9.0We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good
Price: $$$
FreeShipping
Visit Store » Amazon.com ( 4.68 / 5 )
Features
- INSTANT NOISE REDUCTION. Quickly quiets engine knocking, ticking, and transmission noise by lubricating key components and reducing friction.
- PROTECTS AGAINST WEAR. Provides enhanced lubrication to prevent further wear and tear on engines and transmissions, especially in high-mileage or older vehicles.
- IMPROVES SMOOTH OPERATIONS. Helps restore smoother performance, ensuring quieter and more efficient operation of both engine and transmission systems.
- PREVENTS OVERHEATING. Reduces heat buildup in critical components, preventing damage caused by excessive heat and extending the life of your engine and transmission.
- COMPATIBLE WITH ALL OIL TYPES. Works with conventional, synthetic, and blended oils, and is safe for use in both gasoline and diesel engines, as well as automatic and manual transmissions.
5
Liqui Moly 2770 20004 Hydraulic Lifter Addtive
LIQUI MOLYBrand
2770Model
8.8We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good
Price: $$
Save 7% + FreeShipping
Visit Store » VerSure ( 4.92 / 5 )
6
Lubegard 30015 Engine Oil Protectant
LUBEGARDBrand
30015Model
8.6We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good
Price: $$
FreeShipping
Visit Store » Amazon.com ( 4.68 / 5 )
Features
- For use in all turbocharged engines
- Reduces low-speed pre-ignition (LSPI) engine knock
- Revitalizes worn-out engine oils
- Extends oil life and protects engines from wear
- Protects engines from wear and cold starts
- Reduces varnish and sludge
- Does not contain zinc which is harmful to catalytic converters
- Contains molybdenum known to reduce LSPI/engine knock
- Reduces oil consumption/ volatility
- Manufactured in the USA
7
Liqui Moly 2020 Motor Oil Saver | 300 Ml | Oil Additive
LIQUI MOLYBrand
2020Model
0.0H*0.0L*0.0W inchesDimension
0.75 lbWeight
Ranked #9 in Best Oil Leak Additives Of 2024
8.6We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good
Price: $
Save 12% + FreeShipping
Visit Store » Amazon.com ( 4.68 / 5 )
Features
8
Liqui Moly 2009 Mos2 Anti-Friction Engine Treatment | 300 Ml | Oil Additive
LIQUI MOLYBrand
2009Model
0.0H*0.0L*0.0W inchesDimension
0.4 lbWeight
Ranked #8 in Best Diesel Oil Additives Of 2024
8.4We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good
Price: $
Save 29%
Visit Store » Impart Auto Parts ( 4.7 / 5 )
Features
- Motor oil additive - Liqui Moly MoS2 anti-friction (300 ml. Can).Fit Type - Universal
- Forms High load-bearing film of lubricant on all friction surfaces
- You will be surprised at how much better your engine sounds and how controlled it will be even at very high RPM
- Flash point - 181.0 degrees_celsius
9
Lucas 10063 Engine Break In Oil Additive W/ Tb Zinc Plus
LUCASBrand
10063Model
0.96H*7.72L*2.25W inchesDimension
1.02 lbWeight
8.3We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good
Price: $
FreeShipping
Visit Store » Amazon.com ( 4.68 / 5 )
Features
- Exclusive blend of extreme pressure additives designed for new motors and those with flat tappet camshafts
- Designed for race applications requiring additional extreme pressure additives
- Dyno tested to ensure faster break-in and reduced blow by
- Excellent for flat tappet camshafts during break-in or as an additive to any motor oil to prevent premature wear
- Helps seat in new rings for optimal performance
- Provides excellent extreme pressure protection for the valve train and camshaft
- Safe for use in any racing situation with conventional or synthetic motor oil
10
Liqui Moly 2037 Pro-Line Engine Flush | 500 Ml | Oil Additive
LIQUI MOLYBrand
2037Model
7.99H*2.76L*2.76W inchesDimension
0.95 lbWeight
Ranked #1 in Best Engine Flushes Of 2024
8.1We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good
Price: $$
Visit Store » Impart Auto Parts ( 4.7 / 5 )
Features
11
Rev X ZINC0201 Zddp Oil Additive - Zinc & Phosphorus
REV XBrand
ZINC0201Model
4.0H*1.5L*1.5W inchesDimension
8.1We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good
Price: $
Save 8% + FreeShipping
Visit Store » Rev X Products, Inc. ( 4.93 / 5 )
Features
- Creates an anti-wear layer at friction points to prevent metal-to-metal contact and eliminate wear.
- Engine break-in where the new camshaft and lifters need extra protection, and ZDDP is perfect for that.
- Mandatory for all flat tappet engines.
- Works in both synthetic and standard mineral-based oils.
- Two fluid ounces mixed with 6 quarts of oil create a ratio of 3000 3200 parts per million (ppm).
- ZDDP protects high-load components from excessive wear and failures.
- Use in every oil change for maximum protection.
12
Prestone AS275 Stop Leak Additive Engine Oil 12 Oz Bottle
PRESTONEBrand
AS275Model
2.75H*8.0L*2.75W inchesDimension
Ranked #10 in Best Oil Leak Additives Of 2024
8.1We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good
Price: $
Save 10% + FreeShipping
Visit Store » BTP Logic ( 4.8 / 5 )
Features
- 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
13
Rislone 4405 Hy-Per Lube Zinc Zddp Supplement
RISLONEBrand
4405Model
6.6H*1.8L*3.0W inchesDimension
0.74 lbWeight
8.1We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good
Price: $
Save 11% + FreeShipping
Visit Store » Amazon.com ( 4.68 / 5 )
Features
- BOOSTS ZINC AND PHOSPHOROUS LEVELS - A petroleum oil performance booster containing ZDDP (zinc dialkyldithiophosphate) Zinc and Phosphorous EP (extreme pressure) additives along with mixed esters to help protect internal engine components including pistons, flat tappet camshafts, lifters, pushrod tips and the rest of the valve trainch
- REDUCES FRICTION AND WEAR - Especially at start-up, helping to eliminate dry starts. Less friction means less wear and a cooler running, longer lasting engine.
- REDUCES PISTON SCUFFING - High performance formula stabilizes the motor oil to insure against viscosity and thermal breakdown.
- INCREASES ENGINE LIFE - Clinging action keeps bearings and other internal engine parts lubricated where normal oil fails.
- Made in the USA
14
Generic ANTI-WEAR ENGINE TREATMENT OIL ADDITIVE 2Pcs Highly Effective Engine Anti-Wear Protectant, Wondeea Engine Anti-Wear Protectant, Transmission Fluid Additive
GENERICBrand
Anti-Wear Engine Treatment Oil AdditiveModel
8.1We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Very Good
Price: $
Save 19% + FreeShipping
Visit Store » Ruic ( 4.77 / 5 )
Features
- 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.
15
Bar'S Leaks OS-1 Seal Engine Oil Burning/Leak Repair
BAR'S LEAKSBrand
OS-1Model
1.1 lbWeight
8.0We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Good
Price: $$
Save 6% + FreeShipping
Visit Store » Amazon.com ( 4.68 / 5 )
Features
- REPAIRS LEAKING MAIN SEALS AND GASKETS - We have designed this product to work in all gasoline and diesel engines including turbocharged, EcoBoost, hybrid and even racing engines.
- RENEWS WORN VALVE SEALS AND GUIDES - Your vehicle is a good candidate for Bars Leaks Oil Seal Engine Oil Burning & Leak Repair if it does not consume more than one quart of oil per day.
- STOPS OIL BURNING & BLUE EXHAUST SMOKE - This covers 3, 4, 5, 6, 8 and 10 cylinder engines in all cars, trucks, vans and SUVs. Our product can also be used in heavy-duty applications referencing the appropriate dosage level.
- SEAL ALL OTHER OIL LEAKS, DRIPS AND CONSUMPTION - This applies to a wide range of other motor applications too - tractors, boats, RVs, motorcycles (including wet clutch), ATVs, lawn equipment.
- MADE IN THE USA
16
Liqui Moly P000017 Oil Additive Cera Tec 3721 Ceramic Wear & Tear Protection
LIQUI MOLYBrand
P000017Model
3.0H*2.5L*1.0W inchesDimension
0.66 lbWeight
Ranked #11 in Best Diesel Oil Additives Of 2024
8.0We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Good
Price: $$$
FreeShipping
Visit Store » CANGURO ( 4.84 / 5 )
Features
17
Xado XA 44813 Atomex Oil Additive Stop Leak Engine
XADOBrand
XA 44813Model
Ranked #6 in Best Oil Leak Additives Of 2024
8.0We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Good
Price: $$
Save 27% + FreeShipping
Visit Store » XADO TECH, LLC ( 4.85 / 5 )
Features
- Elasticity Restorer - Look no further for a solution to restore elasticity ability of rubber gaskets and seals. Say goodbye to leaks and fugas with our formula for complete rejuvenation and protection.
- Leak Prevention - Ideal for stopping engine oil leakages. Engineered for all engines, including auto and motorcycle, our slick liquid formula fixes leaks and rejuvenates seals.
- Cost Saver - It offers complete protection for older and new engines. This multi-purpose aditivo is perfect for stopping leaks, enhancing engine performance, and extending the life of your vehicle.
- Efficiency Enhancer - Reduces engine noise and oil consumption with our advanced formula.The slick liquid fix rejuvenates seals, valves, and cylinders, ensuring smoother operation and reducing wear.
- Universal Compatibility - This multi-purpose sealant works with auto, motorcycle, and marine engines, preventing fugas and leaks while rejuvenating seals, valves, and cylinders.
18
Bardahl 2117W 2117 Nosmoke + Stopleak Motor Oil Additive
BARDAHLBrand
2117WModel
9.0H*3.0L*2.0W inchesDimension
0.7 lbWeight
Ranked #12 in Best Oil Leak Additives Of 2024
7.9We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Good
Price: $$
Save 9% + FreeShipping
Visit Store » Amazon.com ( 4.68 / 5 )
Features
- 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.
19
Lucas Oil 11100 Engine Oil Stop Leak Top Off Additive/12X1/Quart
LUCAS OILBrand
11100Model
9.0H*4.35L*2.42W inchesDimension
0.0 lbWeight
Ranked #11 in Best Oil Leak Additives Of 2024
7.7We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Good
Price: $
FreeShipping
Visit Store » Amazon.com ( 4.68 / 5 )
Features
20
Bar'S Leaks 1010 Engine Oil Stop Leak Concentrate
BAR'S LEAKSBrand
1010Model
6.5H*1.8L*3.0W inchesDimension
0.8 lbWeight
Ranked #5 in Best Oil Leak Additives Of 2024
7.5We rank the products based on several factors, like features, price, customer reviews, and so on.
Rating: Good
Price: $
FreeShipping
Visit Store » G.P.S. ( 4.92 / 5 )
Features
- STOPS AND SEALS MOTOR OIL LEAKS - Bar's Leaks Engine Oil Stop Leak Concentrate is specially designed to stop seal and gasket leaks caused by normal engine wear and age.
- RESTORES GASKETS AND SEALS - One bottle treats up to 5 quarts of oil. For larger systems use 1 bottle for every 5 quarts of oil capacity. On small 4 cycle engines, use approximately 2 ounces per quart of capacity.
- PREVENTS ENGINE OIL LEAKS - Add entire bottle of stop leak to engine oil at or between oil changes. Leaks usually stop in 200 miles or 3 days of driving. If leak continues, a second application may be required or mechanical attention is needed.
- WORKS WITH ALL ENGINE OILS - Works with ALL gasoline and diesel engines using conventional, high mileage and synthetic engine oil.