Damn Im getting tired of replacing mine. At most they are lasting 3 years more like 2. Doesn't seem to matter how much I drive my truck. Since it has been sitting for the last 3-4 years and before I was doing 20K a year. It wouldn't be such a big deal other then I have hell finding the right one since my gauge manufacture went under. Just bought 2 that I though fit, but the fittings are different.