Re: '69 302 Cylinder Head----Bolts
Believe it or not, Nissan has a coolant flush and it works very well.
Two step process, cleaner first, then a neutralizer second, drain, flush, then add coolant of choice.
Dex-cool works fine for a closed system, including the reservior, look at a late model, 4th Gen Camaro, or 98-20XX GM product.
Give a man a rescued dog for the health of both their souls.
'With age comes wisdom, but then wisdom ages you even more.'
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