Ideas please. 2014 GTS, 62,000 miles, rough idle, power loss. I've heard run Seafoam, Marvel Mystic through the oil for 500 miles and it will straighten out, I heard that because the battery was dead from sitting 3 months-that will trigger it. Looking for thoughts and ideas. Thank you so much.

Your ideas. 2014 GTS, 62,000 miles, rough idle, power loss. I've heard run Seafoam, Marvel Mystic through the oil for 500 miles and it will straighten out, I heard that because the battery was dead from sitting 3 months-that will trigger it. Looking for thoughts and ideas. Thank you so much.