New Radiator, How much coolant to add? - Lexus IS Forum
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post #1 of 4 (permalink) Old 10-11-2018, 11:45 PM Thread Starter
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New Radiator, How much coolant to add?

Buying a Denso radiator after I found a crack in the oem one. How much coolant should I add into the new radiator? I'm new to this and i'm not sure since there will be some in the block already?
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post #2 of 4 (permalink) Old 10-12-2018, 10:06 AM
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jack up the front of the car slightly and use this https://www.amazon.com/Lisle-24680-S...dp/B00A6AS6LY/

Just fill it up as much as you can and turn the car on. Then keep the funnel 3/4 full and run the car for 10 minutes with the heater on. when all the bubbles are out turn off the car and remove the funnel by using the stopper to prevent the funnel from spilling.

if you don't do this your car will make gurgling sounds due to that high heater return hose in the back.
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post #3 of 4 (permalink) Old 10-12-2018, 04:42 PM Thread Starter
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Thanks
Anyone know the system capacity? I'm going to flush the block as well when I install the new radiator
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post #4 of 4 (permalink) Old 10-12-2018, 06:14 PM
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