Review on 🔒 High-Quality Locking Fuel Cap, 1-3/4 in. Dia. for Optimal Car Security by Austin Arvayo

Seems to work fine. My old cap was causing the check engine light to come on. It sounds like you should check and replace the gas caps on some cars/trucks about every five years. If the vent becomes clogged or damaged, the vehicle will be prone to vapor lock and/or poor fuel flow. Only two keys and I need one for each set of keys I have.