With more than 150 years of experience, we stand above and beyond the crowd in premium automotive chemicals. Bar's Products offers a full line of top chemical tools, including Bar's Leaks, America's most trusted stop-leak brand since 1947, Rislone, America's best-selling engine treatment brand since 1921, and Hy-per Lube, the proven brand of high-performance additives.
We've built our reputation by establishing and maintaining the high standards you expect in vehicle maintenance. Technologies change, but standards should not. Your vehicle is important... we have the solution!
All Bar's Leaks, Rislone and Hy-per Lube products are made in the U.S.A. Based in Holly, Michigan, Bar's Products is an ISO 9001 certified company.
Gear Repair from Bar’s Leaks is designed to stop leaks, reduce noise, and improve gear performance in virtually any gear system including manual gearboxes, differentials, and ...
The Rislone Hy-per Diesel Fuel System Treatment, No. 4740, is designed to improve the quality of diesel fuel by increasing its cleaning ability, boosting cetane, adding lubrication...
Bar’s Leaks Hydraulic Manual Clutch Fluid with Stop Leak, No. 1350, is formulated to seal leaks while improving performance and increasing clutch life. This product reconditions...
Hy-per Lube zinc replacement additive, No. HPZ212, offers a way to keep cams, lifters, and rocker arms safe and eliminate significant wear. The additive allows pressure to be ...
Bar’s Leaks Super Leak Fix, No. 1305, is designed to quickly seal, stop, and prevent leaks in any engine, transmission, power steering, hydraulic or differential/gear system. ...
The CVT Transmission Fix synthetic blend contains a seal conditioner, extreme pressure and anti-wear agents, detergents and a performance additive booster.
A problem with the head gasket, which is located between the cylinder head and engine to protect the cylinders from coolant or engine oil leaks and ensure maximum compression,...
Typically when a vehicle has an oil-soaked starter, the problem is a slow oil leak in the engine’s rear main seal. Unfortunately, this is a common cumulative effect of heat, age...
The Bar's Leaks Super Transmission Fix is designed to work on any type of transmission: automatic, manual, CVT, or dual-clutch. The Super Transmission Fix synthetic-blend treatment...
The Bar's Leaks Hydraulic Seal is a professional-grade formula designed to repair leaks, reduce friction and wear, and renew seals and O-rings in hydraulic systems. This product...
Bar’s Leaks Professional Oil Seal Engine Oil Burning & Leak Repair, No. OS-1, combines synthetic polymers with premium seal-restoring additives to create a long-lasting repair...
Learn how to install our easy-to-use Rislone 3X Concentrated Engine Oil Supplement with Zinc Treatment with Bobby and Caitlin. Well, versions of Bobby and Caitlin, at least.
In this video, Rislone demonstrates how to install Rislone Ring Seal Smoke Repair for stopping blue exhaust smoke, reducing oil burning and sealing worn pistons and rings.
Hy-Per Lube's high performance additives compliment the existing Rislone automotive performance chemical catalog and the Bar's Leaks stop-leak product line.
Bar’s LeaksProfessional Main Seal Motor Oil Leak Repair, No. MS-1, is a high-tech synthetic blend of additives to provide a cost-effective chemical repair for engine oil leaks...
The Bar's Leaks Professional Main Seal Motor Oil Leak Repair, No. MS-1, is a high-tech synthetic blend of the seal restorer additives and polymers designed to stop all engine ...
The Bar’s Leaks Automatic Transmission Repair, No. 1400, is designed to help users restore transmission performance and avoid transmission repairs. It reduces rough shifting and...
The Bar’s Leaks Jack Oil with Stop Leak, No. HJ12, is designed to stop seal and O-ring leaks in jacks and other hydraulic shop equipment caused by normal wear and age. The product...
After more than 25 years of exhibiting at AAPEX, Bar’s Leaks and Rislone will expand their Automotive Aftermarket Industry Week (AAIW) presence to include a booth at the SEMA ...
The Bar’s Leaks Valve Seal Oil Consumption Repair, No. VS-1, chemically repairs oil-consumption issues in engines. It restores valve seals that have shrunk, hardened or cracked...
Bar’s Leaks has combined three of its popular stop leak products into a unique multipurpose formula that can eliminate engine, transmission and power steering system fluid leaks...
Bar’s Leaks will debut its unique One Seal Stop Leak at AAPEX, providing attendees with an opportunity to check out the first all-in-one additive specifically designed to stop...
This Bar's Leaks Tech Minute highlights the company's Head Gasket Fix product, one of its strongest head gasket solutions that's also very easy to install.
Rislone’s family of six Super-Concentrated Fuel Additives makes it easy to treat a wide variety of common vehicle problems. They come packaged in the patent-pending Rislone EZ...
Pat Mulry will value-engineer and improve the company's current products, processes and quality procedures, while helping to develop new products and packaging.
Former five-time NHRA Top Alcohol Dragster World Champion Bill Reichert took another step to regaining his crown with a win during the NHRA Lucas Oil Drag Racing Series North ...
Rislone's Engine Treatment Concentrate, No. 4102, helps treat sticky valves and rings, noisy valves and lifters, plugged oil passages and screens and loss of power. This engine...
Rislone Gasoline Fuel System Treatment(No. 4700) combines six different fuel additives to create a product so advanced that it increases vehicle power, performance and mileage...
The Rislone Diesel Fuel System Treatment, No. 4740, takes the place of six types of diesel fuel additives. The product works as a ULSD sulfur substitute, injector and complete...
Bar’s Leaks Cooling System Repair, No. 1150, not only stops engine coolant leaks and antifreeze loss, but also protects against overheating and future breakdowns. Its two formulas...
Rislone’s EZ Nozzle additive delivery system allows consumers to install fuel additives into “cap-less” fuel tanks. None of the fuel additive bottles currently on the market will...
Rislone's Engine Treatment Concentrate provides all the benefits of the original Rislone Engine Treatment in a bottle that is nearly half the size. If left untreated, engine develop...
Players choose monster trucks to crush obstacles, race competitors and hear the roar of the crowd, just like Rislone Defender driver Zach Adams does in real life most weekends...
Bar's Product's Rislone gasoline fuel system treatment, No. 4700, and Rislone diesel fuel system treatment, No. 4740, each combine six different fuel additives and treatments ...
Bar's Products' Rislone 710 High-Performance Oil Treatment increases oil film thickness, building a thicker oil cushion and increasing oil pressure in worn engines. Rislone 710...
Bar's Leaks' concentrated rear main seal repair, No. 1040, provides the same unique blend of polymers, lubricity agents, anti-oxidants and conditioners as the original Rear Main...
For large cooling system leaks, little time and less money, Bar’s Leaks offers the Bar’s Leaks Liquid Copper (No. 1109). Liquid Copper repairs heater core leaks and cracked cylinder...
The additive in Bar's Products Rislone Fuel Injector Cleaner with Upper Cylinder Lubricant lubricates the fuel pump, injectors and upper cylinder to reduce the friction and wear...
The additive in Bar's Products Rislone Fuel Injector Cleaner with Upper Cylinder Lubricant lubricates the fuel pump, injectors and upper cylinder to reduce the friction and wear...
To stop persistent oil leaks, try Bar’s Leaks Rear Main Seal Repair, No. 1050. This formula restores and conditions seals, and stops leaks caused by engine wear. Rear Main Seal...
Rislone 2-Cycle Engine Oil from Bar's Products keeps two-cycle engines clean, reduces smoke emissions and eliminates the need to keep track of multiple gas cans. This formula ...
Rislone 2-Cycle Engine Oil from Bar's Products keeps two-cycle engines clean, reduces smoke emissions and eliminates the need to keep track of multiple gas cans. This formula ...
Bar's Products' Rislone Compression Repair with Ring Seal, No. 4444, is a proprietary blend of petroleum additives developed specifically for higher-mileage engines suffering ...
Rislone Ring Seal Smoke Repair from Bar's Leaks increases oil film viscosity to reduce blow-by, stop exhaust smoke and quiet engine noise. This engine oil additive cushions and...
Rislone Ring Seal Smoke Repair oil additive increases oil viscosity and cleans rings to prevent oil from blowing past into the combustion chamber. Ring Seal Smoke Repair can be...
Bar's Leaks Power Steering Repair, No. 1600, fixes a wide range of issues for aging vehicles with power steering-related problems. This formula smoothes out hard steering, reduces...
Bar's Products' Bar's Leaks Engine Repair (p/n 1000) is a chemical tool that uses an exclusive two-part formula to repair most common oil-related problems. It is said to restore...
Rislone Engine Oil Supplement with Zinc Treatment, No. 4401, restores ZDDP zinc and phosphorus levels in engine oil to prevent damage and wear to the camshaft, valve train and...
Rislone 710 High-Performance Oil Treatment, No. 4471, uses a high-viscosity formula that increases oil film thickness, building a thicker oil cushion that increases oil pressure...
Bar's Leaks Carbon Fiber Block Seal Head Gasket & Cooling Sealant, No. HG-1, is a one-step formula to seal coolant leaks that meets ASTM D6107 stop-leak specifications. It repairs...
Bar's Leaks Heavy Duty Radiator Stop Leak, No. PLT11, features patented Rhizex pellets that dissolve in minutes to seal cooling system leaks. Bar's Leaks Heavy Duty Radiator Stop...
Rislone® Fuel Injector Cleaner with Fuel Conditioner & Treatment was formulated to be the best all-around fuel additive for virtually any vehicle. It helps eliminate noisy injectors...
Most major oil leaks come from the vehicle's rear main seal, which can be expensive to replace. Bar's Leaks® Rear Main Seal Repair is the first off-the-shelf solution to stop ...
Bar's Leaks Liquid Aluminum Cooling System/Radiator Stop Leak, No. 1186, is formulated to permanently seal the coolant leaks that cause most overheating problems. The formula ...
Not long ago, coolant leaks required immediate repair. But these days, leaks may go unnoticed until the vehicle starts to seriously overheat. To better meet these evolving challenges...
Bar's Leaks developed the Professional DiFM AC-1 A/C Stop Leak and Sealer to permanently seal rubber and metal leaks. With a non-clogging formula, this solution is compatible ...
Rislone Injector Cleaner with Fuel Conditioner & Treatment, from Bar's Leaks, saves fuel by cleaning and lubricating fuel injectors. Rislone works with all types of fuel, including...
New Rislone High-Performance Injector Cleaner with Fuel Conditioner & Treatment helps fleets combat high fuel costs. Rislone Injector Cleaner saves fuel by cleaning and lubricating...
For those times when mechanically fixing a blown head gasket or cracked block would cost more than the vehicle is worth, or when your customer just can't afford the work, Bar'...
Professional DiFM Cooling System Treatment from Bar's Leaks® protects vehicle cooling systems and seals internal, external and coolant-to-oil leaks. It can be used in any vehicle...
Professional DiFM Cooling System Treatment, No. J-100, from Bar's Leaks controls electrolysis by neutralizing pH imbalance and inhibiting the formation of rust, scale and corrosion...
Bar's Products' Rislone Oil Treatment contains viscosity improvers and lubricity additives, and increases oil film thickness to fight metal-to-metal friction and protect against...
Rislone Compression Repair with Ring Seal from Bar's Products is designed to increase and stabilize compression in all cylinders. Compression Repair works to free sticking rings...
Rislone's Power Steering Stabilizer with Stop Leak contains a special blend of performance additives, anti-wear agents and viscosity improvers to solve most common power steering...
Rislone's Oil Stabilizer with Engine Treatment reduces friction and wear in engines, helping to eliminate dry starts and extending the life of older, high-mileage vehicles. High...
Rislone Transmission Stabilizer with Stop Slip contains a blend of viscosity improvers, anti-wear friction modifiers and pressure performance additives to solve most transmission...
Bar's Leaks Rear Main Seal Repair is the first off-the-shelf solution to stop rear main seal leaks, as well as other major oil leaks. Bar's Main Seal Repair works with all gasoline...
Bar's Products' New Rislone® Transmission Stabilizer with Stop Slip contains a special blend of viscosity improvers, anti-wear friction modifiers and extreme pressure performance...
Bar's Leaks introduces Head Gasket Fix, No. 1111, the first chemical solution to permanently repair head gasket and other major cooling system leaks simply by adding it directly...
New Rislone® Oil Stabilizer with Engine Treatment from Bar's Products reduces friction and wear in any engine, helping to eliminate dry starts and extending the useful life of...
