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-   -   Noob question on coolant (http://www.wranglerforum.com/f210/noob-question-on-coolant-217444.html)

Powerman06 02-06-2013 09:34 AM

Noob question on coolant
 
So i have the right coolant (Zerox G-05) and distilled water ready to add to my system since I have a very slight leak from the radiator. Manual tells me to check the level when its running and warm, but never specifies when I can open the bottle to add more safely. Dont want to learn this the hard way so, when are you supposed to add the coolant mixture so that you can measure it right and not overfill? When warm and running, or cold? Thanks in advance.

Patrick H 02-06-2013 09:42 AM

Doesn't matter. The reservoir isn't pressurized. Just know the level will be a bit higher when warm due to the thermal expansion of the coolant.

Powerman06 02-06-2013 09:44 AM

Quote:

Originally Posted by Patrick H (Post 3328642)
Doesn't matter. The reservoir isn't pressurized. Just know the level will be a bit higher when warm due to the thermal expansion of the coolant.

Alright so just keep it under "Full" when adding and I'll be good. Thanks for that.

Patrick H 02-06-2013 11:20 AM

As long as there is coolant in the reservoir when the engine is cold, the radiator itself is full. I keep my reservoir @ the full mark when cold, so it's above the full mark when hot.

Powerman06 02-06-2013 11:32 AM

Ah ok. I knew the level in the bottle changed warm vs cold. I didnt know if I filled it when cold if it would overflow since it rises when warm. Also good to know.

Peepers 02-06-2013 11:36 AM

There should be cold full, and hot full marks on the overflow resevoir. Fill to which ever one is appropriate.


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