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I agree, at the most all you need is an overflow bottle, but even that isnt necessary. Just dont try and use Dexcool with an open system like that because when Dexcool mixes with air from cooling down will turn to a mud like crap.
Just poor in regular cheap non-longlife ethylene glycol? Or what do you use? Your brands are hard to come by here in Europe, so what sort of antifreeze would you recommend?
Just poor in regular cheap non-longlife ethylene glycol? Or what do you use? Your brands are hard to come by here in Europe, so what sort of antifreeze would you recommend?
Speaking from experience my ****** ran an LT1 but sometimes heated a bit. Turns out the coolant expanded and the small overflow tank couldn't handle it resulting in a loss of coolant. I installed a larger overflow and the system stayed solid from then on. In other words, when a system heats up and the coolant expands it has to go somewhere, either total loss or to an expansion tank. When it cools the system is either replaced with coolant from the expansion tank or air.
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Coolant reservoir or not? 
