I know this forum is for 11th Gen Civics only, but I just wanted to throw this in just to compare. I know I'm not the only one seeing all these problems, but just to start, the Civic came with a super small battery for this vehicle. I have an Automatic 2019 Honda Civic 1.5 Turbo. The battery dies after leaving the lights on or the radio for 2 minutes. I checked the oil level ( April 16th 2022 ), and it's up almost 20mm - 25mm, and now to top it off, It leaks gas from the rear ( I believe the top of the gas tank ) after a complete fill up. The smell is too bad that I have to keep it outside my garage. What a Joke...!!!. Any one else around here suffering the same issues ? By the way, Hello from Chihuahua Mexico ( northern hilly and cooler area ). I also mentioned the oil dilution problem to the Service Department Manager here at our Honda Dealer, and of course, He doesn't know anything about it, and denies it all. Car only has 55k miles.
Cheers.!
Cheers.!