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      11-26-2012, 09:37 PM   #2
InsanePineapple
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Quote:
Originally Posted by tranquility View Post
Do I need to have it changed? Dealer says that it's "diluted" but I'm wondering if this is necessary/good idea? Have you guys changed it before and at what intervals? I'm at 55k miles/88k kms.

Thx.
Mike Miller (BMW CCA Technical Editor) in his famous Mike Miller's Old School Maintenance Schedule recommends a coolant flush every 2 years with 50% BMW anti-freeze and 50% distilled water. Note this is if you want to keep your car for a long time (i.e. 100k+) or you want to be kind to the next owner.
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