Upper Radiator Hose

dts3 · 11-24-2018, 01:01 AM

I plan to replace my upper radiator hose and I have what I'm sure is a very stupid question: With a cold engine that's been sitting long enough for the tstat to be closed, will there still be coolant in the upper radiator hose?

Rusty · 11-24-2018, 07:28 PM

Yes.

Quicksilvers · 11-25-2018, 02:18 AM

Yes there will be.

dts3 · 11-25-2018, 02:27 AM

Thanks guys

jchammond · 11-25-2018, 05:15 AM

Be sure & test antifreeze before removal; in case you don’t plan to flush the system,,,this will let you know what to put back in (100%,50/50 or distilled water).

dts3 · 11-25-2018, 12:44 PM

I was assuming that I can use the 50/50 blue from the dealer without worry.

SouthArk370Z · 11-25-2018, 01:05 PM

Quote:

Originally Posted by dts3

I was assuming that I can use the 50/50 blue from the dealer without worry.

You should be able to use 50/50 ... if the last person that filled the system used the proper ratio. Maybe they did. Maybe they didn't. You can get antifreeze checkers for about $5 at just about any parts store (you don't have to be all that accurate, so a cheapo will do).

dts3 · 11-25-2018, 01:21 PM

Quote:

Originally Posted by SouthArk370Z

You should be able to use 50/50 ... if the last person that filled the system used the proper ratio. Maybe they did. Maybe they didn't. You can get antifreeze checkers for about $5 at just about any parts store (you don't have to be all that accurate, so a cheapo will do).

I see what you mean about the previous owner. What information do the antifreeze checkers give you

SouthArk370Z · 11-25-2018, 04:36 PM

Quote:

Originally Posted by dts3

I see what you mean about the previous owner. What information do the antifreeze checkers give you

How much antifreeze you have in your water. Most will indicate freezing point of your af/water mixture but this number is directly related to the concentration.

11-24-2018, 01:01 AM	#1 (permalink)
dts3 Track Member Join Date: May 2018 Location: Farmington Hills, MI Posts: 599 Drives: 08 Expedition Rep Power: 6764	Upper Radiator Hose I plan to replace my upper radiator hose and I have what I'm sure is a very stupid question: With a cold engine that's been sitting long enough for the tstat to be closed, will there still be coolant in the upper radiator hose?

11-24-2018, 07:28 PM	#2 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 34,861 Drives: 2011 Nismo GM 6M Rep Power: 2684436	Yes. jwick likes this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

11-25-2018, 05:15 AM	#5 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 57 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684394	Be sure & test antifreeze before removal; in case you don’t plan to flush the system,,,this will let you know what to put back in (100%,50/50 or distilled water). __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

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Quicksilvers A True Z Fanatic Join Date: May 2017 Location: Atlanta, GA Posts: 2,039 Drives: 2017 370z Rep Power: 25462	Yes there will be.

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11-25-2018, 12:44 PM	#6 (permalink)
dts3 Track Member Join Date: May 2018 Location: Farmington Hills, MI Posts: 599 Drives: 08 Expedition Rep Power: 6764	I was assuming that I can use the 50/50 blue from the dealer without worry.