Posted on 2/27/2026

It feels unfair, honestly. Home A/C can run for years with barely a thought, while a car A/C feels like it has issues all the time, and you are constantly hearing that the system is low. Drivers often assume a car's A/C must be built cheaper, or that refrigerant just disappears over time. The real explanation is simpler than that. A vehicle A/C lives a much harder life than a home system, and it is asked to survive heat, vibration, movement, and tight packaging every day. That environment makes leaks more likely, even when the system was designed well. Car A/C Vs Home A/C: Different Working Life A home A/C sits still. The lines are fixed, the unit is mounted, and temperatures change slowly compared to what happens under a hood. A car A/C gets shaken, heat-soaked, and cooled down again, sometimes multiple times in a single day. On top of that, vehicles have flexible hoses, quick connections, and components packed close together. The more joints and movement you ... read more