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Premium automotive chemicals
trusted for over a century.

With a combined history of American-made quality and more than 150 years of trust, Bar's Leaks and Rislone stand above and beyond the crowd in premium automotive chemicals.

  • Bar's Leaks

    Bar's Leaks offer a full line of stop-leak products designed for radiators and cooling systems, engine oil, transmission, power steering and hydraulic applications.

    See all the Bar's Leaks products
  • Rislone

    Rislone Engine Treatment provides penetrating lubrication and contains a proprietary additive package to remove sludge and prevent harmful engine deposits from forming.

    See all the Rislone products

Not sure what you need?Choose your problem area

  • R. P. – Dayton, OH

  • M. K. - Mt. Hood, OR

  • R. R, P. - Westport, MA

  • I.W.R - Orange, Texas

  • Anonymous

  • S. P. G. - Valley, AZ

  • Scott Adams - Johnstown, PA

  • W. C. - Fort Wayne, IN

  • S. P. - Waco, TX

  • M. L. - Pleasanton, CA

  • J. L., Bolingbrook, IL

  • Rev. J. L. H. Jr. - Cottondale, AL

  • T. C.

  • Wes -- Rockledge, FL

  • K. S. – Phoenix, AZ

  • W. Setter -- Tauranga, New Zealand

  • Anonymous

  • P. C. - Beaverton, Oregon

  • Listen to this testimonial

    Joe Elder -- Yakima, WA

  • B. M. - Huntington Beach, CA

  • G. K., Columbia MO

  • George R. -- Newcastle, PA

  • S.L. - Rockport, MA

  • R. B.

  • C. L.

  • F. S. – via email

  • G. W.

  • S. J. - Houston, TX

  • Listen to this testimonial

    Greg C., Ventura CA

  • C. D. – Skandia, MI

  • M. McKinley -- Richmond, VA

  • B. M. - Unknown

  • Richard H. (Memphis, TN)

  • Ray C. -- Severna Park, MD

  • R. Cann -- Sault Ste Marie, Ontario, Canada

  • C. G. – Austin, TX

  • C. H. Catasauqua, PA

  • L. M. - Fairfield, CA

  • R. G. - Santa Clarita, CA

  • Fred V. -- Edmonton, Alberta CA

  • M. M. - Texas

  • T. B. - Anderson, SC

  • B. M. - Newton, MA

  • Hank Flores - Phoenix, AZ

  • J. R. - Shawnee

  • M. W. – Berkeley, CA

  • D. S. - Johnstown, PA

  • J. - Chula Vista, CA

  • D. S. - El Dorado, AR

  • J. R. - Allentown, PA

  • B. B. - Pittsburgh, PA

  • G. S. - Simi Valley, CA

  • S. K. - Houston, TX

  • D. S. - Bluffton, Ohio

  • J. N. - Owatonna MN

  • S. M. - Glasgow, KY

  • Reverend James Bolin

  • V. M. Geronimo, OK

  • M. J., Temple Hills, MD

  • Bill Best Best Auto REPAIR - Ithaca N.Y.

  • C. P.

  • E. C., Southern Windows & Doors, Inc. - Ridgeland, MS

  • Timothy W. (Traverse City, MI)

  • M. L., Aspen, CO

  • S. T. - L.A., CA

  • H. W. – Beloit, WI

  • J. S. - Deer Creek, IL

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Did you know?

The true story of how Bar's Leaks saved the USS Nautilus while on a top-secret mission. Read more »

The USS Nautilus