View Single Post
      07-10-2012, 07:42 PM   #19
gatoman39
Major
 
gatoman39's Avatar
 
Drives: 2011 E92 335 M-Sport
Join Date: Feb 2010
Location: LA

Posts: 1,347
iTrader: (0)

Garage List
Quote:
Originally Posted by mashimarho View Post
Would distilled water be safe without 50/50 mix or anything?
yes. The expansion tank your adding to holds a small amount of coolant relative to the total amount in the system. What you're trying to do is top it off when it's totally cold to the max fill line, then monitor it. If you keep losing coolant there is either a leak or a head gasket situation. Then you can figure out if you need to take it in. in which case you will have to address the tune.
__________________
gatoman39 is offline   United_States
0
Reply With Quote