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Old 10-09-2004, 04:21 PM   #1
HolyCrikey
Scooby Specialist
 
Member#: 66776
Join Date: Jul 2004
Chapter/Region: South East
Vehicle:
2005 Mazda3 Hatch
Titanium Grey Metallic

Default Newbie Question? Coolant

Hey there guys, I was checking my fluids today and I noticed a few things that I don't quite understand about coolant.

1.) Two days ago, I went to check my cars fluids. The car had not been driven for a day. The coolant was pretty low, but I didn't add any back in. Then, I drove normal for a day, then I drove about 60 miles back home here. I check my fluids, and the coolant level is about and inch above full. Whats going on here? I don't quite understand.

2.) Important question: I open up and look in the coolant tank and I see black pieces of... stuff? Idk. Look like pieces of ash. Small black things floating on top of the coolant. Not too many, but I'm still wondering if this is bad or not? Thanks for the help in advance guys! Pardon the newb questions
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Old 10-09-2004, 06:36 PM   #2
OneOBS
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Member#: 63076
Join Date: May 2004
Location: Caulifornia
Vehicle:
2004 Outback Sport
Red!

Default

1) Normal. Warm fluid expands and will read higher in the expansion tank.

2) Normal. Time to flush and replace your fluid. You should do it every two years.
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Old 10-10-2004, 11:28 AM   #3
dexterous
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Member#: 23553
Join Date: Aug 2002
Chapter/Region: MAIC
Location: Slippery Rock, PA
Vehicle:
2005 STI - Insanity!
2014 WRX - Daily

Default One more

Can the coolant be safely replaced with normal green Prestone coolant? What about the orange DEXCOOL stuff? Any need to use some kind of special Subaru snake oil coolant treatment to avoid head gasket issues?
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Old 10-11-2004, 04:42 AM   #4
RyansJDMgc8
Scooby Newbie
 
Member#: 65462
Join Date: Jul 2004
Location: Riverside CA USA
Vehicle:
01' 2.5RS
Silver/Carbon Fiber

Default

The green stuff should be fine. The orange/red coolant is usually used for higher milage engines. (I think its the same thing w/ food coloring added)
Subaru does have a "Coolant Conditioner" that you can get. I heard that is what helps the head gasket issues.
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