So I bought a Superbird about two months back and it was overheating a little so It turned out the radiator had a small leak and when I drained it to inspect it had gunk clogging it up. I sent it out to get a new cooler 4 row core and should be ready for pick up in the next hour or two.
I also researched and found a lot of reccimendations to use the following:
“50/50 mix of water/antifreeze,....again I'll recommend the Zerex G-05 brand antifreeze (just 1 gal. the rest water, should be close to 50/50) with 8-10 oz. of Redline Water Wetter added,(Autozone).”
Would that be the best to use? If so then for the water mix would it be regular water or would it have to be distilled?
I would suggest if you found gunk in the radiator and that gunk included fine rust, pull the starter, knock the frost plugs out, pull water pump housing and flush that block out. These cars sit so much they rust in the water jackets even if antifeeze is green. Just did my own sbird block was full halfway up frostplugs, never ran hot, always had green antifreeze.
