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E90/E91/E92/E93 (2006 - 2013)
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  #1  
Old 09-26-2012, 05:28 PM
pastman pastman is offline
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BMW Antifreeze

Hello Members:

From what I've seen, it seems that I shouldn't consider anything other than "genuine" BMW antifreeze for my 2007 328xi. The best price that I can see is a little less than $30 (shipping included) for this item. I don't mind the price, but it would be much more convenient for me to obtain Peak antifreeze, which claims that it is a suitable alternative to the BMW brand. Please advise. Thanks.

Last edited by pastman; 09-26-2012 at 05:30 PM. Reason: double check spelling
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  #2  
Old 09-26-2012, 05:41 PM
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drive by72 drive by72 is offline
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It is important to use the OEM anti-freeze in newer model cars.

Short: the antifreeze was made for your engine, which is why it is in there to begin with.

Long: Certain antifreezes (notably 'green') have nitrates and other chemicals in them that BMW did not design the block for. Newer engines rely on different blends of anti-freeze, specifically made for the application. BMW blue is nitrate free, while peak isn't. Those nitrates cause premature wear internally. Another things is hydroelectric conduction. This affects aluminum parts more than anything, because the static electricity that naturally occurs in your engine gets conducted through the off brand antifreeze, and it passes on through the parts, which over time, begin wearing from the inside out. With BMW blue, it nearly eliminates this condition.

Another note, use distilled water. Small coolant passages can clog up with the iron, fluorine and all the other minerals found in tap water. It won't be immediate, but over time those minerals will settle down, and more than likely end up in the heater core or radiator. Once it gets to a certain point, it will clog and will need replacement. Distille water is 87 cents a gallon at Walmart, so there is no excuse to not use it (except dire on the road emergency).
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  #3  
Old 09-26-2012, 08:08 PM
pastman pastman is offline
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Bmw oem antifreeze

Thanks for the reply:

Is this antifreeze "nitrite" or "nitrate" free? Are there no other coolants judged to be free of this material?
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  #4  
Old 09-26-2012, 08:22 PM
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Orient330iNYC Orient330iNYC is online now
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you need to do careful research...
why not just go pick up a gallon of bmw coolant at a local dealer?
list price is about 20 bucks a gallon. then you dont have to worry about compatiblity.
iirc, the bmw coolant is nitrate, amine, and phosphate free.
different coolants use those as additives. mixing incompatible kinds can cause quite spectacular results.


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if you can pad the order over 25
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Last edited by Orient330iNYC; 09-26-2012 at 08:24 PM.
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  #5  
Old 09-26-2012, 09:22 PM
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floydarogers floydarogers is offline
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Quote:
Originally Posted by pastman View Post
Thanks for the reply:

Is this antifreeze "nitrite" or "nitrate" free? Are there no other coolants judged to be free of this material?
Zerex G-05 is ok: phosphate and silicate-free is the key. If you search, you'll find others that meet the spec G-48.
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  #6  
Old 09-26-2012, 09:37 PM
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Orient330iNYC Orient330iNYC is online now
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Originally Posted by floydarogers View Post
Zerex G-05 is ok: phosphate and silicate-free is the key. If you search, you'll find others that meet the spec G-48.
G-05 is not silicate free... i know at one point it had bmw listed, but the current approvals list no longer has bmw listed. changed formulation? http://www.valvoline.com/products/co.../antifreeze/42


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  #7  
Old 09-26-2012, 11:23 PM
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CALWATERBOY CALWATERBOY is offline
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Quote:
Originally Posted by drive by72 View Post
It is important to use the OEM anti-freeze in newer model cars.

Short: the antifreeze was made for your engine, which is why it is in there to begin with.

Long: Certain antifreezes (notably 'green') have nitrates and other chemicals in them that BMW did not design the block for. Newer engines rely on different blends of anti-freeze, specifically made for the application. BMW blue is nitrate free, while peak isn't. Those nitrates cause premature wear internally. Another things is hydroelectric conduction. This affects aluminum parts more than anything, because the static electricity that naturally occurs in your engine gets conducted through the off brand antifreeze, and it passes on through the parts, which over time, begin wearing from the inside out. With BMW blue, it nearly eliminates this condition.

Another note, use distilled water. Small coolant passages can clog up with the iron, fluorine and all the other minerals found in tap water. It won't be immediate, but over time those minerals will settle down, and more than likely end up in the heater core or radiator. Once it gets to a certain point, it will clog and will need replacement. Distille water is 87 cents a gallon at Walmart, so there is no excuse to not use it (except dire on the road emergency).

An assessment of some interest. Couple o'things:

Iron - in a thoroughly inhibited system w/much aluminum, where's iron corrosion product sourced? Municipal water usually treated to remove corrosivity; deliver low iron. Glycols pretty well inhibited against acid reversion.

Fluorides - somewhat soluble, and at very low levels by regulation, prob won't be an issue.

Other minerals - Of these, high hardness in alkaline treated water will form solids in the warmest parts of the system. Big trouble.

Silica - Sometimes in antifreeze to prevent aluminum corrosion, in hard water will form a nasty abrasive grit.

Given that newgen film forming inhibitors perform best in high purity water, distilled or equiv is the only way to fly. What used to be nitrite may be entirely replaced with organics.

.

Last edited by CALWATERBOY; 09-26-2012 at 11:26 PM.
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  #8  
Old 09-27-2012, 09:00 AM
RBinDC RBinDC is offline
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Low often should the antifreeze be changed?

Quote:
Originally Posted by pastman View Post
Hello Members:

From what I've seen, it seems that I shouldn't consider anything other than "genuine" BMW antifreeze for my 2007 328xi. The best price that I can see is a little less than $30 (shipping included) for this item. I don't mind the price, but it would be much more convenient for me to obtain Peak antifreeze, which claims that it is a suitable alternative to the BMW brand. Please advise. Thanks.
My 335is is coming up for its two year maintenance. Will the dealer change the antifreeze? If not should I pay extra to have that done? I plan to keep my car for another 5 years.
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  #9  
Old 09-27-2012, 10:09 AM
HPIA4v2 HPIA4v2 is offline
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Coolant used to be 4-yr flush interval , now BMWNA says lifetime. "lifetime" is basically the key word when BMWNA doesn't want to pay for it.

for heavy items, like fluids alot of times dealer price is reasonable. I flush my coolant still every 4-yer, out of pocket.
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  #10  
Old 09-27-2012, 10:35 AM
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Well done, Chadley.
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  #11  
Old 09-27-2012, 12:36 PM
rdorman rdorman is offline
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Don't forget that it is not diluted so you need to mix it 50/50 with distilled water. I just bought a gallon for $18.56 plus $1.00 for a gallon of distilled water so $9.78 a gallon which I feel is really good.
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