Anti Freeze

[Dave Mann]

        Interestingly the studs are rust free. Personally I've used Bluecol 50% mix for the last two decades with good results although it taxes my patience with it's ability to leak. All of our cars have zinc sacrificial anodes in their heads for the last decade with no corrosion visible so I've just modified a block with a zinc sacrificial anode. I did try cleaning a block and head with Bilt Hamber's Deox C being circulated the opposite way and while it removed a pile of crud I can't see if I've removed all the crud.