Johnsens

About Johnsens: Nearly a Century of Automotive Car Care

Johnsens has been one of the most enduring names in the automotive aftermarket, tracing its roots all the way back to 1928. Based in Cleburne, Texas, the brand was built on a simple but powerful promise: deliver reliable, quality-tested automotive chemicals that drivers and technicians can count on every time. What started with packaging brake fluid has grown into one of the most comprehensive lines of automotive specialty chemicals available today.

Manufactured by Technical Chemical Company, Johnsens products are the result of decades of formulation expertise and rigorous quality control. Whether you're a professional mechanic or a dedicated DIYer, the brand's commitment to consistency means you get the same dependable results from every bottle, can, or aerosol.

A Complete Line of Automotive Specialty Chemicals

Over the decades, Johnsens has expanded far beyond its brake fluid origins. Today, the brand offers a broad spectrum of automotive fluids, aerosol products, and mobile air conditioning solutions. Their lineup spans categories including brake cleaners, carburetor cleaners, power steering fluids, lubricants, refrigerants, and cooling system products — making Johnsens a true one-stop resource for automotive chemical needs.

One of the brand's most trusted product segments is cooling system care. Their engine coolant additives are engineered to prevent rust and corrosion inside automotive cooling systems, protect critical metals like aluminum, copper, and iron, and keep your engine running at safe operating temperatures. For anyone looking to extend the life of their cooling system between full coolant flushes, Johnsens cooling system treatments are a smart, proven choice.

Quality You Can Trust, Globally Recognized

Johnsens has long carried a reputation that extends beyond American borders. The brand is recognized internationally, with distributors and retail partners around the world relying on Johnsens products to meet the demands of diverse automotive markets. Their rigorous quality control testing ensures that every product in the lineup delivers the consistency professionals expect and the dependability home mechanics need.

• Nearly 100 years of automotive aftermarket experience
• Broad product range: fluids, aerosols, additives, refrigerants, and more
• Trusted by professionals and DIYers across the U.S. and internationally
• Manufactured by Technical Chemical Company with strict quality standards
• Products designed to protect and extend the life of critical vehicle systems

Why Choose Johnsens?

In a market crowded with automotive chemical brands, Johnsens stands out through its combination of long-standing heritage and continuous innovation. The brand has consistently evolved its formulations and product offerings to meet changing vehicle technology and consumer needs — from classic carbureted engines to today's modern aluminum-intensive powertrains. When you reach for a Johnsens product, you're reaching for nearly a century of trusted automotive expertise.