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      06-07-2018, 04:54 PM   #1
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Quick and Stupid Question: Coolant

Just curious what type of coolant fellow N20 owners put in their car. I'm aware that it is typically 50/50 distilled water and antifreeze, but is there anything specific you guys mix with the water? Or do you just go 50/50 water and any old antifreeze. Wondering if there's a "BMW specific" coolant combo or anything of that nature. Basically, what do you fill your coolant tank with?
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      06-07-2018, 05:20 PM   #2
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I buy the BMW coolant from a parts reatailer(not dealer)....itís not much more than the popular brands out of there, and I have peace of mind that I am using the correct stuff....itís not like it needs to be changed often anyway, so a few extra bucks for the original coolant ok by me....
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      06-07-2018, 05:41 PM   #3
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Quote:
Originally Posted by leejak View Post
I buy the BMW coolant from a parts reatailer(not dealer)....itís not much more than the popular brands out of there, and I have peace of mind that I am using the correct stuff....itís not like it needs to be changed often anyway, so a few extra bucks for the original coolant ok by me....
Nice, thanks for the input. They carry it at Autozone/O'Reilley's etc. by you? Might have to go look for it.
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      06-07-2018, 07:39 PM   #4
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Havent changed the coolant in my car but you cant go wrong with redline water wetter and distilled water
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      06-07-2018, 09:43 PM   #5
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Havent changed the coolant in my car but you cant go wrong with redline water wetter and distilled water
Thanks for the suggestion. Looked online and it says it's for smaller engines though? Generators, ATVs, karts, etc.
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      06-07-2018, 09:51 PM   #6
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Originally Posted by rjdnyy224 View Post
Thanks for the suggestion. Looked online and it says it's for smaller engines though? Generators, ATVs, karts, etc.
Never heard that before. My friend uses it in his 600whp turbo integra and I use it in my 350whp 240sx (2L 4 cyl turbo motor like ours). Keeps them both plenty cool
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      06-07-2018, 10:05 PM   #7
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Originally Posted by MONSTAR View Post
Never heard that before. My friend uses it in his 600whp turbo integra and I use it in my 350whp 240sx (2L 4 cyl turbo motor like ours). Keeps them both plenty cool
lol I guess that's a good bode of confidence. Thanks for the suggestion!
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      06-08-2018, 02:31 AM   #8
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Quote:
Originally Posted by rjdnyy224 View Post
Nice, thanks for the input. They carry it at Autozone/O'Reilley's etc. by you? Might have to go look for it.
Not sure if available at atozone or Oíreilly....I buy my parts from a local foreign car parts place located close to me...bma parts.com...located in Burbank......they have great prices on parts in general....including parts that are generally only available from the dealer....but they are my go to for filters, oil, brake fluid, brake rotors a d pads, etc.....and they carry aftermarket brands as well as oem brands...

Iím sure there must be a shop similar near you...usually a mom and pop kind of operation....not a big chain.....
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      06-08-2018, 07:22 AM   #9
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Quote:
Originally Posted by leejak View Post
Not sure if available at atozone or Oíreilly....I buy my parts from a local foreign car parts place located close to me...bma parts.com...located in Burbank......they have great prices on parts in general....including parts that are generally only available from the dealer....but they are my go to for filters, oil, brake fluid, brake rotors a d pads, etc.....and they carry aftermarket brands as well as oem brands...

Iím sure there must be a shop similar near you...usually a mom and pop kind of operation....not a big chain.....
Huh, never heard of a shop like that. Time to start looking!
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      06-11-2018, 10:23 AM   #10
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Just some good, normal blue coolant and water wetter mixed in. WW does allow for quicker recovery too.
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      06-11-2018, 10:45 AM   #11
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Quote:
Originally Posted by BunkerJ View Post
Just some good, normal blue coolant and water wetter mixed in. WW does allow for quicker recovery too.
So 50/50 Distilled water and good coolant, and then a splash of WW? Sounds good to me.
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      06-11-2018, 10:51 AM   #12
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How much is a splash? One full bottle of 355 mL (12 fl. oz)? Less or more?
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      06-11-2018, 10:59 AM   #13
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Quote:
Originally Posted by M2Rush View Post
How much is a splash? One full bottle of 355 mL (12 fl. oz)? Less or more?
So I've read that the N20 takes 6.7 liters of coolant. Seems like a lot, but thats what I found. So I guess a splash would be something like a whole bottle, maybe a bit less.
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      06-11-2018, 11:39 AM   #14
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Quote:
Originally Posted by rjdnyy224 View Post
So 50/50 Distilled water and good coolant, and then a splash of WW? Sounds good to me.
No need for water. Blue coolant already has water mixed in and don't quote me, but I think 50/50 already? May not be that ratio, but overall no need for water. Just fill mine with one jug of fluid and water wetter. I think 10-12 caps is what I did.

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Originally Posted by M2Rush View Post
How much is a splash? One full bottle of 355 mL (12 fl. oz)? Less or more?
I'm pretty sure I did 10-12 caps of water wetter ("splash"). Overall, having more isn't going to hurt you so don't fret.
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      06-12-2018, 12:47 PM   #15
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Quote:
Originally Posted by rjdnyy224 View Post
Quote:
Originally Posted by M2Rush View Post
How much is a splash? One full bottle of 355 mL (12 fl. oz)? Less or more?
So I've read that the N20 takes 6.7 liters of coolant. Seems like a lot, but thats what I found. So I guess a splash would be something like a whole bottle, maybe a bit less.
Are you performing a coolant flush at home? Or are you just low?

How many miles on your vehicle? To my knowledge the coolant system is "closed" and requires zero maintenance until 100k.

Just wondering... always interested to hear what others are doing to properly maintain and extend the longevity of their vehicle.
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      06-12-2018, 01:26 PM   #16
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Quote:
Originally Posted by rjdnyy224 View Post
So I've read that the N20 takes 6.7 liters of coolant. Seems like a lot, but thats what I found. So I guess a splash would be something like a whole bottle, maybe a bit less.
Quote:
Originally Posted by BunkerJ View Post
No need for water. Blue coolant already has water mixed in and don't quote me, but I think 50/50 already? May not be that ratio, but overall no need for water. Just fill mine with one jug of fluid and water wetter. I think 10-12 caps is what I did.



I'm pretty sure I did 10-12 caps of water wetter ("splash"). Overall, having more isn't going to hurt you so don't fret.
Thanks for the advice guys! Gives me an idea of how much to put, I appreciate it!
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      06-12-2018, 01:30 PM   #17
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Quote:
Originally Posted by sspade View Post
Are you performing a coolant flush at home? Or are you just low?

How many miles on your vehicle? To my knowledge the coolant system is "closed" and requires zero maintenance until 100k.

Just wondering... always interested to hear what others are doing to properly maintain and extend the longevity of their vehicle.
Curious about the 100k mark. I've personally swapped the coolant twice in the past 30k miles just due to upgrades/repairs that required me to but that's just a drain and fill essentially. It wasn't until my turbo install that we added Water Wetter to get results.
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      06-12-2018, 01:49 PM   #18
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Quote:
Originally Posted by sspade View Post
Are you performing a coolant flush at home? Or are you just low?

How many miles on your vehicle? To my knowledge the coolant system is "closed" and requires zero maintenance until 100k.

Just wondering... always interested to hear what others are doing to properly maintain and extend the longevity of their vehicle.
Can be flushed at home, usually somewhere around 80k-100k. Yes, you'd have to drop and change the pan/filter(comes as one part). Some may change it a little earlier than it's required because they do it along with the Oil Filter Housing Gaskets(#11428637820, #11428637821) as some oil may get into the coolant system and vice versa. Some even go as far as changing all the coolant hoses as they can start to get brittle after somewhere around 100-120k you may be able to get further but each car is driven differently in different conditions. I'd personally use all genuine BMW parts, you probably only have to do this once for owning the car 10 years.
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      06-12-2018, 02:34 PM   #19
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Quote:
Originally Posted by BunkerJ View Post
Curious about the 100k mark. I've personally swapped the coolant twice in the past 30k miles just due to upgrades/repairs that required me to but that's just a drain and fill essentially. It wasn't until my turbo install that we added Water Wetter to get results.
I guess if you were to do it that often, you wouldn't have to drop/change pan until you've reached 100k.
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      06-12-2018, 04:31 PM   #20
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Oddly, BMW has changed the service interval for replacing engine coolant from 2 years to "lifetime". BMW coolant is still the same part number it used to be.

Same thing with my 2018 Honda pilot. The engine coolant change interval is 100,000 miles versus every 3 years with my old Honda Pilot. Again, same Honda coolant part number.

It's magic.



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      06-12-2018, 07:25 PM   #21
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^ thats what I thought.
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      06-12-2018, 08:16 PM   #22
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Quote:
Originally Posted by Mr Podman View Post
Oddly, BMW has changed the service interval for replacing engine coolant from 2 years to "lifetime". BMW coolant is still the same part number it used to be.

Same thing with my 2018 Honda pilot. The engine coolant change interval is 100,000 miles versus every 3 years with my old Honda Pilot. Again, same Honda coolant part number.

It's magic.



podman

They say lifetime but the transmission is made by ZF and they recommend 100k.
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