Did the Sea Foam Spray treatment for the first time today. Results were different than expected, but I am satisfied. Thick clouds of smoke while introducing the spray into the intake, then little smoke fifteen minutes later during "spirited driving" portion of the process. Also, three misfire codes (cyl 1, cyl 2, and random misfire). Pulled over, inspected everything, cleared code, restarted the drive cycle. No code return, and engine temps and idle all normal. Car felt good, actually.
Next time I will do the water method. Sea Foam is too toxic. ChrisFix (YouTuber) used a scope to demonstrate equally good results with water.
