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DIY Coolant Flush/Refill?

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Old Apr 18, 2010 | 08:24 PM
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Default DIY Coolant Flush/Refill?

Hi guys, i'm just wondering if there is an article for coolant flush and refill especially made for 350z/g35. I've noticed there's quite a few Youtube videos demonstrating the procedures but I think it's safer to follow one made especially for our cars. If anyone knows any, please LMK! Thanks in advance



I've got 2 more question to ask for those that have done coolant flushing:

1) In that same DIY here, it says to "fill the coolant until the coolant reaches the neck of the radiator cap (the level should be right to where the overflow hose is)." My question is, if I wait until it reaches the neck, it'd be too late since I would already have extra coolant in my funnel. Am I misinterpreting what the DIY says?

2) What brand of antifreeze do you guys all recommend, or are they all the same in terms of quality? Should I buy 50/50 antifreeze or mix it with distilled water myself?

Last edited by xthejokerx; Jun 1, 2010 at 09:41 AM.
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Old Apr 18, 2010 | 08:28 PM
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enjoy.......

https://my350z.com/forum/maintenance...anual-fsm.html

-J
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Old Apr 18, 2010 | 08:30 PM
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Jason is always helpful in this community but this is a bit more user friendly at the bottom.

http://crackaddict.com/~flynn/howtos...amco.howto.htm

Last edited by SuperBlack350z; Apr 18, 2010 at 08:33 PM.
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Old Apr 18, 2010 | 08:41 PM
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Love ya both, no homo haha.
Fastest response i've ever gotten,

Thanks a lot!
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Old Apr 18, 2010 | 08:47 PM
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Originally Posted by SuperBlack350z
Jason is always helpful in this community but this is a bit more user friendly at the bottom.

http://crackaddict.com/~flynn/howtos...amco.howto.htm
thanks....

thats a nice find..........

-J
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Old Apr 18, 2010 | 08:47 PM
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i just did this and it's very easy to do, but a PITA to get the air out of the lines. I just ordered the Lisle 24610 Spill-Free Funnel for the next time I have to do it.

It will cut a lot of time from removing the air out of the system.
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Old Apr 18, 2010 | 08:47 PM
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One question, why do I have to replace the drain plug? Can't I just dry the old one and re-use?
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Old Apr 18, 2010 | 09:40 PM
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I think "replace" means "reinstall".
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Old Apr 19, 2010 | 04:09 AM
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Originally Posted by SuperBlack350z
Jason is always helpful in this community but this is a bit more user friendly at the bottom.

http://crackaddict.com/~flynn/howtos...amco.howto.htm
Thats what I used and it was very easy considering I had never done it before.
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Old Apr 19, 2010 | 06:51 AM
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Originally Posted by xthejokerx
One question, why do I have to replace the drain plug? Can't I just dry the old one and re-use?
Reuse it...
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Old May 30, 2010 | 08:42 AM
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SO on the coolant flush is it necessary to drain the block too?
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Old Jun 1, 2010 | 09:40 AM
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Originally Posted by Diesel350
SO on the coolant flush is it necessary to drain the block too?
According to this DIY, it is not required since draining the block will be more difficult to do.




I've got 2 more question to ask for those that have done coolant flushing:

1) In that same DIY here, it says to "fill the coolant until the coolant reaches the neck of the radiator cap (the level should be right to where the overflow hose is)." My question is, if I wait until it reaches the neck, it'd be too late since I would already have extra coolant in my funnel. Am I misinterpreting what the DIY says?

2) What brand of antifreeze do you guys all recommend, or are they all the same in terms of quality? Should I buy 50/50 antifreeze or mix it with distilled water myself?
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Old Jun 6, 2010 | 02:02 PM
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Great find on the DIY. Subbed
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Old Jun 6, 2010 | 05:48 PM
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Originally Posted by xthejokerx
According to this DIY, it is not required since draining the block will be more difficult to do.
That DIY just tell you how to replace your current coolant, I don't see anything in there about how to flush it with water.
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Old Jun 6, 2010 | 07:18 PM
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[QUOTE=xthejokerx;8314068]Hi guys, i'm just wondering if there is an article for coolant flush and refill especially made for 350z/g35. I've noticed there's quite a few Youtube videos demonstrating the procedures but I think it's safer to follow one made especially for our cars. If anyone knows any, please LMK! Thanks in advance



I've got 2 more question to ask for those that have done coolant flushing:

1) In that same DIY here, it says to "fill the coolant until the coolant reaches the neck of the radiator cap (the level should be right to where the overflow hose is)." My question is, if I wait until it reaches the neck, it'd be too late since I would already have extra coolant in my funnel. Am I misinterpreting what the DIY says?

2) What brand of antifreeze do you guys all recommend, or are they all the same in terms of quality? Should I buy 50/50 antifreeze or mix it with distilled water myself?[/QUOTE]

Consider Evan Waterless Coolant. Has a much higher boiling point.
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Old Apr 27, 2016 | 12:59 PM
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did this:
https://my350z.com/forum/maintenance...r-coolant.html

see my post on that thread..

-J
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