My last maintenance item for the year was changing the coolant on my 2008 Chevy 6.0 liter V-8. For those with the good old Chevy small blocks there is a bit of a difference. For one ,there is no fill neck on the radiator and the other difference is there in no drain plug on the rad.
Draining is done by using pliers or a clamp tool to loosen up the lower hose. A bit of a pain but bad once you get used to it. You can come in from above but might have to move the air inlet and/ or you can come in from underneath once you turn the wheel to the right and undo the plastic fender liner.
I've seen several you tube videos on changing the fluid and the range from a
Simple drain and fill, drain, flush and fill, to some sort of garden hose heater core flush. I really don't like dealing with disconnection those plastic GM fittings but if someone has a cool system of doing a flush I'd like to see it.
I decided to do a drain and two simple flushes. My total system volume is 4.4 gallonns. Draining the rad and fill tank yields only 1.5 gallons. My goal was to get to at least 50% new Antifreeze. The coldest I've seen here in the last 5 years is -32 C.
My first drain was 1.5 gallons of the original fluid. It was Dexcool that was mixed by the dealer at approx 60 % as indicated by the -45 C on the density based analyzer. That's pretty common up here.
I then re-attached the lower hose and filled the rad and tank with 100% distilled water and took it for a spin to get the thermostat open and get water circulating through both heater cores. I then drained the rad and tank again. The fluid was diluted down to 40% Antifreeze as indicated by the -18 C reading on the analyzer.
Going for supper. Right ba
Draining is done by using pliers or a clamp tool to loosen up the lower hose. A bit of a pain but bad once you get used to it. You can come in from above but might have to move the air inlet and/ or you can come in from underneath once you turn the wheel to the right and undo the plastic fender liner.
I've seen several you tube videos on changing the fluid and the range from a
Simple drain and fill, drain, flush and fill, to some sort of garden hose heater core flush. I really don't like dealing with disconnection those plastic GM fittings but if someone has a cool system of doing a flush I'd like to see it.
I decided to do a drain and two simple flushes. My total system volume is 4.4 gallonns. Draining the rad and fill tank yields only 1.5 gallons. My goal was to get to at least 50% new Antifreeze. The coldest I've seen here in the last 5 years is -32 C.
My first drain was 1.5 gallons of the original fluid. It was Dexcool that was mixed by the dealer at approx 60 % as indicated by the -45 C on the density based analyzer. That's pretty common up here.
I then re-attached the lower hose and filled the rad and tank with 100% distilled water and took it for a spin to get the thermostat open and get water circulating through both heater cores. I then drained the rad and tank again. The fluid was diluted down to 40% Antifreeze as indicated by the -18 C reading on the analyzer.
Going for supper. Right ba
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