Too many keys on a key ring can damage your ignition switch. If you have more than six keys on your key ring, you will end up damaging your car. The ignition switch can only handle so much weight. If you carry around more than six keys, place excess keys on a separate key ring.While there is no professional consensus on how many keys are too many, most experts agree that five or six keys should really be the max amount. An even better option is to keep your ignition key on its own key ring to reduce the weight pressing down on the ignition

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