Re: V8 Piston damage what do you think happened

Posted by Owen_Dyneto On 2009/4/2 9:00:10

Looks to me very much like corrosion from glycolic acid (breakdown product of ethylene glycol) which resulted from a leaking head gasket or crack in the head or block. It's very agressive in attacking aluminum and it's alloys, but essentially has no effect on cast iron or steel.