Confused by G05

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Originally Posted By: RMBC73
Yes, Prestone 5/150 is phosphate, silicate and borate free. It's in the FAQ section of their website. http://www.prestone.com/carcare/faq.php


Yet more proof that it isn't worth a d*mn.

The stuff has got to have absolutely *NO* protection against cavitation damage without most of the additives normally used to fight cavitation. Unless it has one [censored] of a dose of nitrate.
 
Originally Posted By: Dieselbob
I have an 07' Saturn Vue with the Honda V-6. I want to lose the Dexcool, and was considering the G05, but then I saw a chart in one of the threads here that shows G05 not being recommended for Asian vehicles, so now I'm really confused. Suggestions anyone?


Asian manufacturers tend to specify P-OAT coolants without silicates, G-05 has some silicates. I personally can't see any harm whatsoever in using G-05 in an asian vehicle, and I think the avoidance of recommending a coolant with ANY silicates whatsoever is a CYA on the part of the coolant makers. Now that aftermarket P-OATS are becoming available (eg. Zerex for Asian vehicles) it should be less of an issue.
 
The silicates form what is called "water glass" on the metal surfaces. I've seen it under the microscope. It has the appearance and consitency of dandruff. Though solid, it's not a particularly hard material.
 
Originally Posted By: 440Magnum
Originally Posted By: RMBC73
Yes, Prestone 5/150 is phosphate, silicate and borate free. It's in the FAQ section of their website. http://www.prestone.com/carcare/faq.php


Yet more proof that it isn't worth a d*mn.

The stuff has got to have absolutely *NO* protection against cavitation damage without most of the additives normally used to fight cavitation. Unless it has one [censored] of a dose of nitrate.





"Nitrites", not "Nitrates" are used for cavitation protection.

Detroit Diesel PowerCool Plus has no silicates, phosphates, borates and it is even nitrite-free. It has none of the conventional additives for cavitation protection and relies on OAT chemistry for cavitation protection. Yet it is approved for DD engines. I am aware of your views on Dexcool, you don't trust its OAT chemistry.

You can confirm it all here
http://www.eetcorp.com/antifreeze/Coolants_matrix.pdf
 
Originally Posted By: Dieselbob
I have an 07' Saturn Vue with the Honda V-6. I want to lose the Dexcool, and was considering the G05, but then I saw a chart in one of the threads here that shows G05 not being recommended for Asian vehicles, so now I'm really confused. Suggestions anyone? I don't want to tick off Saturn should I have a warranty claim, but I would rather do what Honda wants, not what GM wants.

Toyota Pink or Zerex Asian Forumla looks very much like Dex-Cool.
 
Maybe try the Honda Type 2 coolant. I use it in my motorcycles, and it seems to be a excellent quality coolant. My local Honda car dealer has it for around $13/gallon. (It used to be green-colored, but now a pretty blue, but it's the same formula)
 
Originally Posted By: George7941



"Nitrites", not "Nitrates" are used for cavitation protection.



You mean I've been making bologna perservatives with the wrong thing too?!?!
grin2.gif
If my brain were connected to my typing fingers...

Originally Posted By: George7941


Detroit Diesel PowerCool Plus has no silicates, phosphates, borates and it is even nitrite-free. It has none of the conventional additives for cavitation protection and relies on OAT chemistry for cavitation protection. Yet it is approved for DD engines. I am aware of your views on Dexcool, you don't trust its OAT chemistry.


I trust OAT chemistry fine... just not THAT particular one with 2EHA.

But I would also argue that just because Detroit Diesel approves a particular coolant for their engines doesn't make it have adequate general cavitation protection for other engines. Some are far more demanding than others in that regard. Frequently the cause of cavitation in diesels is as much or more an acoustic phenomenon than a thermal (microboiling) one. The lack of proven specific cavitation protection additives in Prestone 5/150 might be OK for *some* applications, but my point is that it can't really be universal... for that reason and many others.
 
Originally Posted By: nthach
Originally Posted By: Dieselbob
I have an 07' Saturn Vue with the Honda V-6. I want to lose the Dexcool, and was considering the G05, but then I saw a chart in one of the threads here that shows G05 not being recommended for Asian vehicles, so now I'm really confused. Suggestions anyone? I don't want to tick off Saturn should I have a warranty claim, but I would rather do what Honda wants, not what GM wants.

Toyota Pink or Zerex Asian Forumla looks very much like Dex-Cool.


I am going to try the Asian Zerex. I am getting it for $9.09 from the NAPA warehouse. Seems like a good deal.
 
Originally Posted By: Dieselbob


I am going to try the Asian Zerex. I am getting it for $9.09 from the NAPA warehouse. Seems like a good deal.


I'd probably have gone with more proven G-05, but this seems like about as good a choice. If you can, follow up over a few years and let us know if any oddities develop.
 
The Valvoline tech sheet for Zerex Asian Vehicle Coolant refers to a BASF patent No. 5454967 entititled "Phosphate containing coolant mixtures which are stable in hard water". This patents specifies a P-OAT formula that is supposed to be compatible with hard water. See http://www.freepatentsonline.com/5454967.html.

The tech sheet indicates that that Valvoline is using a BASF P-OAT formula (specified in detail in the patent) rather than one developed by CCI, the Japanese coolant manufacturer. It is not clear how close this formula is to CCI OEM formulas. Nevertheless, it is clearly preferable to other aftermarket coolants for Japanese vehicles.
 
Originally Posted By: sayjac
I just did a complete distilled flush series using it on an 03 Altima. It replaced Prestone AMM LL which had been in ~ 3years. I don't know if Prestone AMM LL is silicate and phosphate free, no info on website.

Nissan calls for coolant service 30k/2yrs so I'm not concerned. My system was/is clean and I've had no issues using it. And, am not concerned about 2eha since I regularly service my cooling system. The Peak LL just happened to have a $5 rebate so I chose it this time. But, if the 2eha really bothers you, you should get Peak Global Life, if you can find it.

The Xerex chart is a decent guide, except for the Asian cars, IMO. Nissan Altima actually calls for "green" coolant which I assume means conventional green, so the chart is wrong there for sure.


I just did a coolant change on my 2004 Altima. The "green" coolant Nissan is refering to is their "Long Life" coolant. It is silicate free and borate free I believe. The jug says nothing about how long a "life" it has (ie, 5yr/100K or the likes). The Nissan OEM is pricy stuff though. I talked the dealer down to $25 for a gallon jug (not pre-mixed).

I bought this Altima used, and it was manufactured in Oct 2003 ... so the factory fill was almost 6 years old. But the car only has 23K on it. The inside of the radiator looked spanking new ... so the Nissan coolant seems to be pretty good IMO. I'm sure the lower mileage helped keep the additives from degrading over that time period.
 
Originally Posted By: 440Magnum
Asian manufacturers tend to specify P-OAT coolants without silicates, G-05 has some silicates. I personally can't see any harm whatsoever in using G-05 in an asian vehicle, and I think the avoidance of recommending a coolant with ANY silicates whatsoever is a CYA on the part of the coolant makers. Now that aftermarket P-OATS are becoming available (eg. Zerex for Asian vehicles) it should be less of an issue.


Somewhere on a Maxima website there is a link to an older application guide from Zerex that showed their G-05 (gold bottle ?) being applicable to the asian cars. Since then they have changed their recommendation and now show the "Asian formula".
 
Originally Posted By: GROUCHO MARX
Originally Posted By: moribundman
Wow. Panda Bear has disappeared. John Browning has returned. I'm sure it's a coincidence. No really! ;-)


It's like that Clark Kent and Superman mystery.


I was banned since early July till early Sep, and no I'm not John Browning.




Just stumble upon this topic. Dad's Taurus have "timing cover gasket" and water pump failure at only 70k and 8 years. Was using Preston all make extended life (Dex Clone according to all of you) since about 25k. Not sure if it was partly to blame but I have changed the coolant every 30k despite the "extended life" hype.

I use the concentrate and dilute it with tap water here, and now that I think of it, I'm kind of scared. What really could be the cause of the leak? It's quite common too and I've heard that it is because of the alum cover/pump and iron block engine causing corrosion rather than the coolant.

I'm sort of not so sure now about using any 2 EHA coolant now.
 
Originally Posted By: Ursae_Majoris
440Magnum said:
My concern with silicates is water pump seal life. When I hear silicates, I think of sandpaper. Am I confused about it?
I think you are. Every Ford, Chrysler and Jeep you see on the road has silicates in it unless somebody changed the coolant to semething other.

These cars and trucks are still getting over 100K out of the water pumps. My Jeep has 94K on it and the original pump. I'm going to replace the pump soon because of the milage and not because it's leaking.

My motorcycle has had silicates in it's coolant since 1990 and doesn't leak yet.

The problem with silicates in old style green is that they seperate from the rest of the mix if not changed every couple of years. I think everybody on this board keeps an eye of their coolant so dropout is a non issure here.
Click to expand...
 
Originally Posted By: SuperBusa
Originally Posted By: 440Magnum
Asian manufacturers tend to specify P-OAT coolants without silicates, G-05 has some silicates. I personally can't see any harm whatsoever in using G-05 in an asian vehicle, and I think the avoidance of recommending a coolant with ANY silicates whatsoever is a CYA on the part of the coolant makers. Now that aftermarket P-OATS are becoming available (eg. Zerex for Asian vehicles) it should be less of an issue.


Somewhere on a Maxima website there is a link to an older application guide from Zerex that showed their G-05 (gold bottle ?) being applicable to the asian cars. Since then they have changed their recommendation and now show the "Asian formula".
Actually prior to the new Asian formula, the Zerex chart showed a recommendation for Dexcool (see below) for cars 97 and newer.
shocked2.gif

http://www.valvoline.com/pdf/Zerex_CoolantChart.pdf
 
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