UNTILL RECENTLY THE INTERSTATE, WALLMART, ADVANCE AUTO.MOTORCRAFT.AC DELCO, MOPAR, AUTO ZONE,NISSAN, TOYOTO, AND SEARS ARE ALL THE SAME BATTERY MADE BY JOHNSON CONTROL MOST OF WHICH ARE MADE IN MEXICO. RECENTLY INTERSTATE ENTERED INTO A PARTNERSHIP WITH EXIDE TO BUILD THEIR BATTERIES. THIS WILL BE INTERESTING TO WATCH THIS " QUALITY" ISSUE UNFOLD. I KNOW THIS FOR FACT BECAUSE I OWN A BATTERY COMPANY AND HAVE BEEN IN THE BATTERY BUSINESS SINCE 1982