Radiator fluid dirty, Everybody chim in.

[SVTDice]

Hey guys. So if you guys followed my cooling mods post then you know I've already done one drain and fill when I installed my 170 T-Stat. So this past weekend I decided to change coolant again, to my shock my coolant looked...very dirty to say the least. So I wanted to ask everybody, Does everybody's coolant look this dirty or whats the deal? Oil is clean, No oil in the coolant, No sludge, No oil smell, No loss of oil. Any idea's?

3-6 Date of coolant change picture below.

Brand new 60% Distilled 40% Zerox G-05

Fluid from this past weekend....Looks dirtier then two months ago...Wtf? Could be the pan I drained it in....But doubt it.

 

[006]

Read Sid's posts on his recommendations here:

http://www.svtperformance.com/forums/greasy-spoon-418/925012-aluminum-block-coolant.html

Pretty sweet advice in there

 

[b_dike]

Did you flush the system, or just drain and refill?

 

[SVTDice]

Did you flush the system, or just drain and refill?

Just a drain and fill, Both times.

 

[KLeech]

It appears your cobra is making apple cider.. I see this as a business opportunity for you!

But seriously, it looks like you need to flush the system. Draining is great, but there's still tons of coolant left inside the block and everything else that doesn't ever come out from just draining it. So every time you're just mixing old/dirty coolant with your new coolant. I've done a couple drain/fills on my car in the last couple years and it's never even looked dirty let alone like that. It could be that someone once was using regular water in it instead of distilled.

 

[Mike681]

It appears your cobra is making apple cider.. I see this as a business opportunity for you!

:lol: My thoughts exactly.

+1 on the flush.

 

[SVTGarcia]

did you use a cleaner in the coolant system? or just flush and refill?

 

[SVTGarcia]

did you use a cleaner or just flush and refill?

 

[blwn89gt]

The coolant looked like that in my cobra when I purchased it last August. I took it to my buddy at Goodyear where he hooked it up to this machine and he kept running water/coolant through it til it came out clean. The coolant looks brand new still.

 

[Tractionless1]

How's the oil look? I've never flushed when changing nor drained the system complete and mine didn't even look like that after 3 years.