Apparently there is a filter that can be replaced on the cvt. I didnt know that until recently when the master technician guy told me about it. This is what causes the fill plug pop off phenomenon to happen. He said mine didnt look bad but wants me to get it done soon JIC. No charge and am catching many praises for changing the fluid every 25k miles. Thinking I might remove this soon and send to Adam for cut and paste visuals. I never seen in the service for a filter swap but am happy to do if it warrants it.
https://www.youtube.com/watch?v=hs8tFhOtrYc Shows how and where it is at.
https://www.rockauto.com/en/moreinfo.php?pk=4974921&cc=3310198&jsn=405&_nck=Ekt6BqBF1pwlXdx0gYlm1esw98pF26vehMm%2FGG3C%2Fl2QOXSJubi7Wbtv3UuYQU5U70IOqpyPMG1Z2pW01mLSjmpvhzOaI48N8y%2FNgMUaQtFKFv9Mi9TGyuB3Xd1aPiU%2BWhqiROI%2BGM1lKp5YtY0srVK6Oi6%2BUFW8DilpcfjHXhh9yeoltGgnIkSkQFjNsmzM0in%2F1pi7GdXjiaOyFgzRfGZpFZnQ2cBtQkoQ6IOsK%2FUjJ7KkXGiD%2FaZTD%2B9tkNicqcIvw0cHtXj8UHF7PgBZjZKzifhTFyyyuq6tUHglSC3ba4HpQYDE%2BclA1EctJZLJ4fJkvQbkkL4mMMpfT7rlN%2FvdlUILwPVwXsm3%2FP5xWcsq3VqyupwbtWcX8WPZ46qkQKHztwTA9QI%2FQ7LojPWX3GEDewBfSiRMp3NDHw2I3060xLJrISpidc3CqsSnf7dzUwCY98RFjfzJ2e1BokKAeg%3D%3D
This is the part for the 9th gen civic hcf2 fluid filter. I bought two of them at 5.XX ea. Hope this helps.
https://www.youtube.com/watch?v=hs8tFhOtrYc Shows how and where it is at.
https://www.rockauto.com/en/moreinfo.php?pk=4974921&cc=3310198&jsn=405&_nck=Ekt6BqBF1pwlXdx0gYlm1esw98pF26vehMm%2FGG3C%2Fl2QOXSJubi7Wbtv3UuYQU5U70IOqpyPMG1Z2pW01mLSjmpvhzOaI48N8y%2FNgMUaQtFKFv9Mi9TGyuB3Xd1aPiU%2BWhqiROI%2BGM1lKp5YtY0srVK6Oi6%2BUFW8DilpcfjHXhh9yeoltGgnIkSkQFjNsmzM0in%2F1pi7GdXjiaOyFgzRfGZpFZnQ2cBtQkoQ6IOsK%2FUjJ7KkXGiD%2FaZTD%2B9tkNicqcIvw0cHtXj8UHF7PgBZjZKzifhTFyyyuq6tUHglSC3ba4HpQYDE%2BclA1EctJZLJ4fJkvQbkkL4mMMpfT7rlN%2FvdlUILwPVwXsm3%2FP5xWcsq3VqyupwbtWcX8WPZ46qkQKHztwTA9QI%2FQ7LojPWX3GEDewBfSiRMp3NDHw2I3060xLJrISpidc3CqsSnf7dzUwCY98RFjfzJ2e1BokKAeg%3D%3D
This is the part for the 9th gen civic hcf2 fluid filter. I bought two of them at 5.XX ea. Hope this helps.