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supereal · 01-12-2017, 04:15 PM

I use two gallons of Sierra antifreeze, and top off the system with distilled water. It does freeze here in Iowa, but if I was in San Diego, I'd use just the distilled water with a dose of anti rust additive.

01-12-2017, 04:15 PM	#3
supereal Senior Member Join Date: Jul 2014 Location: Iowa Posts: 1,634	Re: 40 Ford Coolant Capacity I use two gallons of Sierra antifreeze, and top off the system with distilled water. It does freeze here in Iowa, but if I was in San Diego, I'd use just the distilled water with a dose of anti rust additive.