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Anti-freeze/coolant recommendations
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Terry Kay
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PostPosted: Sun Jun 17, 2012 9:27 pm    Post subject: Reply with quote

It must be another Miracle happenening here.

Running 5/30 water thin oil in that engine when the the suggested oil during the summer months is minimum 15/40, just plainly is insane.
It's not suggested in your owner's manual, it's not suggested in the Bently, it's not suggest by any competant VW dealer.
How you came upon this wacky Eurika on your own--and then braodcasting it live, is beyond me.


FYI--there is some sort of combustion by products found in every internal combustion engines coolant.
Not on day one.
Maybe not on day two.
But on day 679 the coolant wil have some sort of combustion related contamination.
The coolant will be suspending some sort of garbage in it.
It's DCA level will be down--regardless of how much & how often you add that subaru jello & allow to float around in the system--how mch sealer can a system hold in suspesion without screwing something up?

If you had hung a water filter set up on the engine that would grab most of the crap outa the system, this would ave been the right way to go--no problem.
You'd have to eliminate the Subaru seal a meal garbage --it would plug the filter up right away,and deem it worthless.
Plus--to never change that coolant is a fools wish for longevity.

Tell me you have a spin on water filter with a conditioer pill in it only on that engine, & I'll believe you don't ever change the coolant.

Until than--I'd keep this one to yourself--I sure wouldn't be announcing the haphazzard methods you are practicing to screw up your cooling system.
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randywebb
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PostPosted: Mon Jun 18, 2012 12:44 pm    Post subject: Reply with quote

what is DCA ?

does the Subaru product not also contain conditioners and other additives, besides having a stop leak function?

My goal is not to keep the same coolant in there for decades, just a few years, and it is not clear to me why a long-life coolant with ot w/o additional additive packages can last 10, 20 or more years in other alloy motor cars, but not in a Vanagon(?)
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Wildthings
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PostPosted: Mon Jun 18, 2012 1:20 pm    Post subject: Reply with quote

randywebb wrote:
what is DCA ?

does the Subaru product not also contain conditioners and other additives, besides having a stop leak function?

My goal is not to keep the same coolant in there for decades, just a few years, and it is not clear to me why a long-life coolant with ot w/o additional additive packages can last 10, 20 or more years in other alloy motor cars, but not in a Vanagon(?)


I don't think it would be wise to try and run any engine that long without replenishing the additives from time to time.
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randywebb
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PostPosted: Mon Jun 18, 2012 1:35 pm    Post subject: Reply with quote

Understood - my question is about a longer than 2 year change interval with testing (using test strips) & periodic replenishment of the additive package.
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Merian
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PostPosted: Sun May 31, 2015 4:25 pm    Post subject: Reply with quote

anybody use BMW coolant?

is it just a re-branded German coolant? or does BMW require a certain spec. ...??
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tjet
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PostPosted: Sun May 31, 2015 5:15 pm    Post subject: Reply with quote

Why not VW G13?

I use it in all my VW's

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0to60in6min
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PostPosted: Sun May 31, 2015 6:09 pm    Post subject: Reply with quote

I use Pentosin NF - flush and replace every 1.5 to 2 years....

http://www.pentosin.net/f_antifreeze.asp
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hans j
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PostPosted: Sun May 31, 2015 6:25 pm    Post subject: Reply with quote

Yes, we use the blue bmw coolant to replace g11
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PostPosted: Sun May 31, 2015 7:05 pm    Post subject: Reply with quote

0to60in6min wrote:
I use Pentosin NF - flush and replace every 1.5 to 2 years....

http://www.pentosin.net/f_antifreeze.asp


So what is best for a WBX, nitrate-free or silicate-free? (or... what's best to avoid head gasket leaks)?
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IdahoDoug
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PostPosted: Sun May 31, 2015 8:49 pm    Post subject: Reply with quote

I use the cheapest green undiluted coolant I can get at NAPA. It's their $12.49/gallon house brand. Works great. I save the exotic $30/gallon Euro brand for my Audi. Mainly because I like having a bottle of that stuff on the shelf next to the other exotic oils and lotions and potions - heh.

The Vanagon WBX is a pretty low stressed, low tech engine and I'm not sure it needs to be fed pricey coolants. If I ever switch, it will be to a nontoxic simply because of how much these girls leak onto the street!!
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JudoJeff
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PostPosted: Mon Jun 01, 2015 5:47 am    Post subject: Reply with quote

My understanding of why you should change your antifreeze every two years is because it becomes an electrolyte, like in a battery. Your test strips are most likely just checking to see how acidic it is. As it becomes acidic, the Noble metals start shedding themselves, moving to the next lower metal on the range.
(zinc and aluminum are the sissies....)

Boats parked next to each other at an ocean dock, with an electrical leak into the water by one, can dissolve the entire motor in a short period of time. (Swimmers can also get lethally shocked!) The same thing happens inside your VW engine.

The azeotrope mixture of EG/H2O has poor rust inhibiting qualities, and additives help. But after even one year it's common to see a rust colored antifreeze. You're smart to change to a fresh mixture.
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0to60in6min
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PostPosted: Mon Jun 01, 2015 8:29 am    Post subject: Reply with quote

Quote:
So what is best for a WBX, nitrate-free or silicate-free?


if you look at the upper right corner - Pentofrost NF (with silicate) - at the list of vehicle - it's for Volkswagen (up to 06/1996)


Last edited by 0to60in6min on Mon Jun 01, 2015 12:51 pm; edited 1 time in total
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kamzcab86
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PostPosted: Mon Jun 01, 2015 12:00 pm    Post subject: Reply with quote

0to60in6min wrote:
Quote:
So what is best for a WBX, nitrate-free or silicate-free?


if you look at the upper right corner - Pentofrost NF (with silicate) - at the list of vehicle - it's for Volskawagen (up to 06/1966)


^Typo. Wink Pentofrost NF, which is G11, is for Volkswagens up to 6/1996.

Here's a breakdown of VW's coolants over the production years:

Up to 1996: G11 (Ethylene Glycol-based with silicates, phosphate-free)
1996-2003: G12 (Ethylene Glycol-based, phosphate- & silicate-free)
2003-2008: G12+ (Ethylene Glycol-based with special additives; phosphate- & silicate-free)
2008-2010: G12++ (Ethylene Glycol-based with silicates; phosphate- & nitrite-free)
2010-present: G13 (Ethylene Glycol-based with silicates; phosphate- & nitrite-free)
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0to60in6min
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PostPosted: Mon Jun 01, 2015 12:53 pm    Post subject: Reply with quote

thanks Kam...

there's not enough coffee when I typed it..

Very Happy
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tjet
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PostPosted: Mon Jun 01, 2015 5:00 pm    Post subject: Reply with quote

kamzcab86 wrote:
0to60in6min wrote:
Quote:
So what is best for a WBX, nitrate-free or silicate-free?


if you look at the upper right corner - Pentofrost NF (with silicate) - at the list of vehicle - it's for Volskawagen (up to 06/1966)


^Typo. Wink Pentofrost NF, which is G11, is for Volkswagens up to 6/1996.

Here's a breakdown of VW's coolants over the production years:

Up to 1996: G11 (Ethylene Glycol-based with silicates, phosphate-free)
1996-2003: G12 (Ethylene Glycol-based, phosphate- & silicate-free)
2003-2008: G12+ (Ethylene Glycol-based with special additives; phosphate- & silicate-free)
2008-2010: G12++ (Ethylene Glycol-based with silicates; phosphate- & nitrite-free)
2010-present: G13 (Ethylene Glycol-based with silicates; phosphate- & nitrite-free)


Ok then, I will use that Pentofrost NF. I just replaced the WP (87 2.1) & I currently have straight water in it (for leak checks). Thanks
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0to60in6min
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PostPosted: Mon Jun 01, 2015 5:07 pm    Post subject: Reply with quote

mix it 50/50 with distilled water... please...
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tjet
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PostPosted: Mon Jun 01, 2015 7:14 pm    Post subject: Reply with quote

Will do.

I have one of these 5 gallon jugs. I mix it 50/50 with distilled water (2 gallon coolant & 2 gal wtr) & lay it down on the roof with a 8' clear hose pressed tightly (no leaks) into the surge tank (pressure res).

Remove the radiator bleeder & let it flush. Install the bleeder when the water coolant mix color matches the premix (It will be 2/3's empty) Works good. Make sure you get a square jug.

http://www.ebay.com/itm/VP-Racing-White-5-Gallon-S...mp;vxp=mtr
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