Recently my C43 developed a cold start "tappet" sound like a sticky lifter somewhat...when the car sits for a few days then turned on it will make this sound for about 2 mins.
I was told I should use Seafoam in the oil, take it for a short trip and then change the oil. This weekend im doing a 250km (total) road trip and am somewhat due for oil change aswell so it would be the perfect situation, however I am a little nervous pouring this into my oil crankcase.
Opinions?
I am second owner of the car, 140,000kms (80k miles?)