I have a 2010 Acura TSX 2.4L 4cyl with 182k Miles. Change oil religiously. On cold starts only, I hear a rattle for a split second. Put seafoam in the gas, oil, brake booster, back in December. Haven’t heard the noise til today. I was thinking of using Marvel mystery oil or Lucas oil, as it might be the cvt actuator not holding the oil, Hense the rattle only on cold starts. People recommend using an s2000 oil filter???? What are thoughts or opinions?
do try that better filter, but with that mileage, odds are internal wear has occurred inside the engine. Have a pro listen in person, we can hear stuff and diagnose it quick