Far more likely to be an old washer stuck on the pan that looks like it’s part of it.

Nylon doesn’t leak. I use OEM toyota washers on corollas and they’re essentially cardboard with rubber and they’ve never leaked in all my years

If its designed to be a crush washer, it’ll do. Its hard to F up.

Theres reusable rubber gaskets, fomoto valves, copper washers, nylon washers, more traditional metal washers.

All of em work and leaks are usually on the installer and not the material.

Cleaning is important, even if its just a brush with a paper towel, 1 washer is important, and torque specs are important if you’re unsure.

The fact that you believe that says a lot about you, lmao.

If you haven’t ever even had experience with a dead battery how do you expect to comment on this subs quality.