How long does OEM BMW Coolant stay good?

e92m3sf · 07-13-2021, 04:42 PM

I bought a gallon of coolant from my BMW about 2-3 years ago
I used about half and the other half has been sitting in storage
Is it still good to use or should I replace it?

roastbeef · 07-13-2021, 05:11 PM

It's probably still good. The coolant that's currently in my car has been in there longer than that…

Vuu · 07-14-2021, 11:10 AM

It's probably good, and if it's not, just go buy a new bottle.

tbuck · 07-14-2021, 01:44 PM

Stored coolant can last for many years. Coolant under constant heat cycling in general is good for 3-4 years but often goes much longer as people do not change it as often as it should be. Your bottle of coolant is just fine.

Scharbag · 07-18-2021, 09:22 AM

Quote:

Originally Posted by tbuck

Stored coolant can last for many years. Coolant under constant heat cycling in general is good for 3-4 years but often goes much longer as people do not change it as often as it should be. Your bottle of coolant is just fine.

I finally swapped my factory coolant after 10 years and 73TKM. It looked 100% fine and tested good. Really did not need to be changed yet.

In a bottle on a shelf, coolant will outlast most marriages.

amrazM · 07-20-2021, 11:15 AM

you can test it but if youre that concerned then just replace it.

Johnr3524 · 07-20-2021, 04:40 PM

Quote:

Originally Posted by Scharbag

I finally swapped my factory coolant after 10 years and 73TKM. It looked 100% fine and tested good. Really did not need to be changed yet.

In a bottle on a shelf, coolant will outlast most marriages.

That's actually not saying too much...

Scharbag · 07-20-2021, 05:16 PM

Quote:

Originally Posted by Johnr3524

Quote:

Originally Posted by Scharbag

I finally swapped my factory coolant after 10 years and 73TKM. It looked 100% fine and tested good. Really did not need to be changed yet.

In a bottle on a shelf, coolant will outlast most marriages.

That's actually not saying too much...

After I typed that, I thought the same thing.

Perhaps you could say it will outlast dry pasta…

07-13-2021, 04:42 PM	#1
e92m3sf Private 4 Rep 61 Posts Drives: e92 m3 Join Date: Nov 2016 Location: ca iTrader: (0)	How long does OEM BMW Coolant stay good? I bought a gallon of coolant from my BMW about 2-3 years ago I used about half and the other half has been sitting in storage Is it still good to use or should I replace it?
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07-13-2021, 05:11 PM	#2
roastbeef Lieutenant General 11586 Rep 12,726 Posts Drives: E92 M3 Join Date: Nov 2010 Location: Orange County, CA iTrader: (4)	It's probably still good. The coolant that's currently in my car has been in there longer than that… __________________ Instagram; @roastbeefmike
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07-14-2021, 11:10 AM	#3
Vuu Astronaut 514 Rep 732 Posts Drives: E92 M3 Join Date: Nov 2018 Location: Orange County, CA iTrader: (7)	It's probably good, and if it's not, just go buy a new bottle. __________________ Instagram \| @undisclosedm3 "Never think that you are above taking out the trash."
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07-14-2021, 01:44 PM	#4
tbuck Captain 1186 Rep 946 Posts Drives: 2011 E92 M3, 2016 F23 M235i Join Date: Feb 2020 Location: Huntsville iTrader: (0)	Stored coolant can last for many years. Coolant under constant heat cycling in general is good for 3-4 years but often goes much longer as people do not change it as often as it should be. Your bottle of coolant is just fine. __________________
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07-20-2021, 11:15 AM	#6
amrazM mTekMods 2142 Rep 2,901 Posts Drives: like a granny. Join Date: Jan 2010 Location: Manhatan iTrader: (1)	you can test it but if youre that concerned then just replace it. __________________ 2011 Frozen Black/Fox Red E90 M3 650+WHP G-Power Supercharged First DCT to Manual Conversion Worldwide KW CS, BBS RI-A, BW Headers, Snow 2.5
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