Top 10 Oil Additive For Seals – Engine & Oil Fluid Additives

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1. Bar's Leaks


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

Bar's Leaks #ad - However, for best results and to prevent the problems from reoccurring, use with every other oil change, or once per year.5 - 4. Works in all gasoline and diesel engines including turbocharged, 4, 6, including 3, 5, 8 and 10 cylinder engines in all cars, Eco Boost, trucks, hybrid and even racing engines, vans and SUV's.

Can also be used in heavy-duty applications as well as tractors, ATV's, motorcycles including wet clutch, boats, RV's, lawn equipment. Use 1/2 bottle for smaller systems 3. In most cases the oil leak issue will be repaired with a single dosage. 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. This premium quality synthetic blend works with all types of motor/engine oil including regular petroleum, high mileage, synthetic blends and fully synthetic formulas.
BrandBar's Leaks #ad
ManufacturerBar's Products #ad
Weight1.1 Pounds
Part NumberOS-1
WarrantySee Manufacturer

2. Bar's Leaks


16.9 oz, Bar's Leaks Concentrated Rear Main Seal Repair

Bar's Leaks #ad - Add to engine oil. Do not overfill. Add entire bottle of rear main seal repair to engine crankcase where you add oil at or between oil changes. Specifically designed to seal rear main leaks, but also works better than a conventional stop leak on all other leaks. Dosage: one bottle treats 4 to 6 quarts of oil. Most leaks will stop within 100 miles or 2 days of driving. Seals timing cover, cam seal, rear main and other hard to stop oil leaks.
BrandBar's Leaks #ad
ManufacturerBar's Leaks #ad
Height7.7 Inches
Length1.9 Inches
Weight1.1 Pounds
Width3.4 Inches
Part Number1040

3. Lucas Oil


1 Quart, Lucas Oil 10278 Engine Oil Stop Leak

Lucas Oil #ad - Renews worn seals with no risk of damage or eventual corrosion. Reduces engine noise and oil consumption, while raising oil pressure. Compatible with petroleum, semi-synthetic and full synthetic motor oils. Contains no harmful solvents.
BrandLucas Oil #ad
ManufacturerLUCAS OIL #ad
Height11.75 Inches
Length3.3 Inches
Weight2.03 Pounds
Width3.3 Inches
Part Number10278
WarrantyManufacturer Warranty

4. Bar's Leaks


Rislone 4447 Compression Repair with Ring Seal, 16.9 oz.

Bar's Leaks #ad - Viscosity improver. Frees sticky rings. Repairs blow-by. Use on any gasoline or diesel engine. Restores lost compression.
BrandBar's Leaks #ad
ManufacturerRislone #ad
Height7.4 Inches
Length2.6 Inches
Weight0.35 Pounds
Width2.6 Inches
Part Number4447

5. Bar's Leaks


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

Bar's Leaks #ad - Stops and seals motor oil leaks. Restores gaskets; seals to stop and prevent engine oil leaks. Compatible with vehicle type: Car. Works with all types of motor oil.
BrandBar's Leaks #ad
ManufacturerBar's Leaks #ad
Height6.5 Inches
Length1.8 Inches
Weight93 ounces
Width3 Inches
Part Number1010



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

XADO #ad - Eliminates the Need For Expensive Repair. Stops oil leakages from the Engine And Prevents Their Emerging In The Future. Restores elasticity And Stretch Ability Of Rubber Gaskets And Seals. Compatible with Motor Oils Of All Types. Reduces engine Noise and Oil Consumption.
BrandXADO #ad
Part NumberXA 44813
ModelXA 44813

7. Bar's Leaks


Bar's Leaks MS-1 Main Seal Motor Oil Leak Repair, 32 fl. Oz.

Bar's Leaks #ad - Best stop leak formula money can Buy. Synthetic blend, for all engines. Safe and easy to use, and works quickly. Repair leaking front and rear main seals. Stop cam and timing seal leaks.
BrandBar's Leaks #ad
ManufacturerBar's Leaks #ad
Height9.06 Inches
Length4.38 Inches
Weight2 Pounds
Width2.56 Inches
Part NumberMS-1

8. Camguard


Camguard 100% Oil Additive Concentrate, Reduce Wear, Corrosion, Dry Hard Seals and Eliminate Engine Deposits Engine Oil Additive. The Ultimate Oil Treatment on The Market.

Camguard #ad - Protect your engine: camguard utilizes the most modern and advanced additive technologies to address issues in antique/classic and modern engines. Reduces wear, corrosion, friction & deposits: reduces friction using the most modern friction modification technology. Camguard automotive is the only total engine oil protectant.

100% additive: did you know that there is only 1 product on the market that is 100% pure additives? We are the ONLY product that is 100% engine oil additives. Wear, friction, corrosion, Deposits, and Seal Degradation. Camguard focuses on 5. Simply the best oil additive treatment available. The only motor oil supplement that protects your engine and contains seal conditioning additives to stop engine oil leaks. Camguard is specifically designed to work with and supplement both petroleum based and synthetic motor oils. Order with confidence! comes with our no-questions-asked 100% satisFACTION MONEY-BACK GUARANTEE.

Camguard utilizes modern advanced antioxidants to prevent cylinder varnish and ring-belt deposits. Motor oil supplement contains anti-wear, anti-friction, corrosion inhibitor and oil stabilizer additives that provide complete protection. No filler & anti-friction: most other oil additives have less than 25% actual additive and focus only on one performance item. Comprehensive motor oil additive package that provides superior wear protection compared to zinc based additives.
BrandCamguard #ad
ManufacturerAircraft Specialties Lubricants #ad
Weight0.52 Pounds
Part NumberCamGuardAuto

9. Hapco Products Co.


Tri-Seal – 16 oz., Hapco Products

Hapco Products Co. #ad - Works while you drive – Works every time! Use for engine, transmission and power steering leaks. Does not contain any particles and will not harm seals. Makes a permanent seal and prevents future leaks. Compatible with all conventional and synthetic oils / fluids.
BrandHapco Products Co. #ad
ManufacturerHapco Products Co. #ad
Part Number216

10. Motorkote


6 Pack, 8 fl. oz, Motorkote MK-10458-06 All Seal Stop Leak and Leak Preventer

Motorkote #ad - Engines/transmissions: add full 8 ounce bottle of MotorKote All Seal for every 6 quarts of oil/transmission fluid. Do not overfill. Power steering: add 2 ounces of MotorKote All Seal for every 1 quart of fluid. Do not overfill. Uses: engine, power steering, transmission, crankshaft main seals, differentials, rack and pinion. Shake before using, keep engine off, check current fill levels, some fluid may need drained or siphoned to obtain proper treat ratio. Do not use in brake systems or radiator cooling systems - Avoid contact with painted surfaces, skin or eyes.
BrandMotorkote #ad
ManufacturerMotorKote #ad
Height7.5 Inches
Length2.25 Inches
Weight0.83 Pounds
Width2.25 Inches
Part NumberMK-10458-06