Can the same spot on a tire be patched twice?

[Gabriel]

The key is the location of the puncture. If it's on the tire shoulder or sidewall, there's no need to patch it—just replace the tire. Tires with four punctures on the tread or punctures larger than 4mm in diameter also aren't worth patching; replace them directly. Similarly, tires with tread depth below the wear indicator (1.6mm) should be replaced rather than repaired. Relevant details are as follows: 1. Sharp object damage: If the tire is damaged by a sharp object, it's likely caused by roadside debris while driving. Such damage usually has a small cut surface but can be very deep, potentially damaging the radial structure inside the tire. While the tire may not immediately blow out, it's unsafe for long-term use, so replacement is recommended. 2. Blunt object damage: For more common blunt object damage, you can feel the depth of the "wound" by hand. Generally, the rubber layer of a tire has some thickness, but the sidewall is a weak spot where the rubber isn't thick enough to provide adequate, effective protection.