I'm still searching for a semi-accurate answer to the lifelong question "How long do the Mercury 2.5 EFI's hold up before dropping a locating pin and scorching the motor?" Are there certain years which are better than others? I've heard that the Wiseco pistons that these motors came with during certain years are terrible. Is this correct? Any ideas as to what years they used Wiseco's / ART's / Mahle's?
Any insight that you can give is greatly appreciated.
-Matt