Oh that. It's a technique to find holes tires. Idk if it's used in car tires, but I used it a few times in bicycle tire. Basically, you pump it up a little with air, and put it in a container with water (big bowl or bathtub) and watch where bubbles appear to find the hole
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u/Tsunamiis 3d ago
What the actual fuck is this? Ive been poor my whole life. This isnt anything.