2019 3.5 EB, 15k miles. Replaced air filter 3 months ago, thought it fit properly but just noticed it was not sealed but rather just sitting on the frame, it's now re-installed properly. I drove it about 5k kms. Is there a way to find out if any damage was done i.e. dirt getting into the engine? Didn't seem to affect fuel economy/performance, no unusual engine noise. I am thinking an oil sample assessment may help. Any suggestions are welcome.