Reply With Quotevery cool useful info.
Big Time Poster
Found this write up on BMW Coolant FAQ
Not to beat a dead horse but i found this on bmwe34m5.com
Subject: M5 FAQ/Coolant
I thought that you may be interested in a post from Jim Conforti that I saved some time ago. He rates the pass and fail brands along with the respective corrosion indexes:
"What are the recommended coolants?
BMW coolant if you want to spend the money, otherwise:
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(by Jim Conforti: jec@us.dynix.com)
Zerex 0.1 mg/cm^2/wk corrosion
Award 0.2
Pronto 0.2
Trust 0.3
Pah-Nol 0.4
Texaco 0.4
Recycled 0.6
Prestone 0.7
FAIL:
Crown 8.4
Shellzone 10.2
Peak 11.9 <- this one's sold everywhere...
Fleetline 12.6
UniGard 12.8
Beaver 13.5
MacGuard 15.0
Sure 19.7
500XL 20.0
Grand Master
very cool useful info.
www.KaRealtySF.com
Build Date: 05-1995 /Engine: m50tu /Automatic Transmission /ABS /NO ASC /Open Differential /EAT Chip
Major Contributor
Personally - I think its more in the maintenance of the car than the coolant that is used. I have seen BMW's still running factory coolant that have cooling system dedgredation. Have also seen cars using aftermarket products with no cooling system problems. I would advise - change it every two years no mater what !
Derek A.
90 535i 5 Speed - Style 5 17"
Super Moderator
That would be good info except that that post is at
least four years old and most likely much more than that. Everybody has come up with different coolants since that was posted. Prestone for example has changed its coolant at least 2 times in the last four years and they offer 3 different prestones, zerex makes at least 8 different coolants as seen here
And a number of the rest have changed as well. So i would venture to say that that data is no longer accurate. Since my car doesn't drink coolant I'll pay the extra and stick with the factory coolant for now. In other cars I've been using the new prestone extended life green thats supposed to be compatible with all other coolants but its still 10.00 a gallon.
Originally Posted by e34it
Major Contributor
I paid $26.50 for a gallon of BMW coolant Saturday...
that is outrageous. Even the parts guy said "WTF?" Granted, I did get a 10% CCA discount which dropped it to $25.52 out the door, but DAYUM! It's getting too pricey to buy these days, even from BavAuto (it's $21.95 plus a LOT of shipping!)
youch!
Bill B.
95 525i
Green Beret Special Ops
local dealer on Michigan was right around 20 bux
95 E34 530I V2.37
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Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy
Zerex G05 is the correct antifreeze. BMW uses Zerex G48. The two are compatable. I think I paid under $10.00.
Green Beret Special Ops
Ohhh boy here we go...
.
95 E34 530I V2.37
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Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy
Big Time Poster
Sorry for stirring the pot guys :0
3 Grand Master
Haha...I guess I'm lucky. The only redeeming characteristic of BMW Cleveland (Kruse) is that they sell Cool Blue for $17/gal.
I thought it was outrageous...still do...but it beats the heck out of $26 or whatever you guys are paying; and I'm not even a CCA member
best, whit
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