View Poll Results: What do you install in your GM after coolant flush (DEX generation)
Prestone 50/50 prediluted extended life (for all vehicles)
14
28.57%
Prestone Dex Cool extended life
11
22.45%
Dex-Cool 50/50 Prediluted
9
18.37%
Prestone Low Tox
0
0%
Peak Global lifetime
7
14.29%
Peak Global lifetime 50/50 prediluted
2
4.08%
Wal Mart cheepest DEX
2
4.08%
Auto Zone cheepest DEX
2
4.08%
Advance Auto cheepest DEX
0
0%
Orielly Cheepest DEX
2
4.08%
Voters: 49. You may not vote on this poll
What brand coolant will you replace in your GM vehicle after a flush?
Member
Posts like a V-Tak
Joined: Jun 2007
Posts: 68
Likes: 0
From: S. Maine
As soon as the warranty was up, flushed out the DEXcool and put in good ole Prestone green coolant. Flushed out wifeys 06 Equinox that we got recently as soon as wee got it. I think I put Napa green coolant in it.....
Member
Posts like a V-Tak
Joined: Jul 2010
Posts: 58
Likes: 0
i went to valvoline for a coolant flush because i know someone who works there, they did not have pink dexcool, so their 'dexcool compatable' alternative was the peak global yellow
it'* now 2 weeks later, and my stuff is murky and i can see sediment in the overflow, and inside the radiator cap kneck....
i think i'm going to go back and have another flush done, i don't like murky coolant.
it'* now 2 weeks later, and my stuff is murky and i can see sediment in the overflow, and inside the radiator cap kneck....
i think i'm going to go back and have another flush done, i don't like murky coolant.
Senior Member
True Car Nut
Joined: Sep 2006
Posts: 4,606
Likes: 0
From: Indianapolis, IN
You should point out that murkiness to them and see if you can have a bit of a refund for it since you feel like you need another flush. Sorry about that, and actually the yellow stuff usually gives me pretty good results.
Administratus Emeritus
Certified Car Nut
Joined: Jan 2006
Posts: 16,539
Likes: 18
From: Purgatory, Pennsylvania
Ya, those flushing machines need to be run until clear. The process disturbs sediment. Most of these places stop as soon as the fluid starts to change. They don't want to waste new. My guy starts with water in the fill reservoir, then when it'* clear, redoes it with antifreeze.
Member
Posts like a V-Tak
Joined: Jul 2010
Posts: 58
Likes: 0
they did it 4 times already haha - i'm not 'blaming' them for doing it wrong, i checked it later that day - and a few days later in the carwash - it was still yellow, and clear - the sediment crept back up over time -
I'll go back for my oil change on monday, and if they'll give me a good discount on another round of flushing - i won't complain.
I'll go back for my oil change on monday, and if they'll give me a good discount on another round of flushing - i won't complain.
Administratus Emeritus
Certified Car Nut
Joined: Jan 2006
Posts: 16,539
Likes: 18
From: Purgatory, Pennsylvania
I really dont like the new macines that just "flush" by running new in to replace the old. Back in the day when I worked at Sears Auto, we had a machine that cleaned alot better by reversing the flow with clean water after you drained. It brought out alot of sediment. But with today'* laws I guess dumping the flush water into the sewer isn't allowed.
Senior Member
True Car Nut
Joined: Sep 2006
Posts: 4,606
Likes: 0
From: Indianapolis, IN
Oh, wow! That'* a great idea! I once made a coolant filter, and I still have it. It'* a strainer in a cup, and I'll see if I can find all the pics and make a thread about it. I didn't actually catch that much. I guess it all depends on you having lots of sediment in the first place when you attempt to filter/flush coolant.