Interstate is made by Johnson Control...

        Other batteries made by this company:

        Diehard Gold

        Eveready (for Costco Wholesale)

        Duralast (for Autozone)

        Tough one (for Parts America)

        EverLast (for WalMart/Sam's Club)

        Motorcraft (for FOMOCO)

        JCI is the largest manufacturer of Automotive batteries in the US...

        I've had a group 41 battery Every Ready that that I bought 6 years ago
at Costco for $29.99 and it works fine...

        Never had a problem with one of these failing prematurely and I've
worked for a total of 8 years for Costco, then Parts America, and
finally now at AutoZone...

        JonR