Recent Topics
Lint-Free Drying Towel ?
by Merkava_4
05/29/15 04:07 AM
different size bottles not haveing the same spec.
by moparguy19
05/29/15 02:12 AM
PERMA-TECH OIL STOP LEAK WILL RUIN SEALS & GASKETS
by yanis
05/29/15 12:52 AM
Any reason NOT to take low dose Aspirin?
by SumpChump
05/28/15 10:59 PM
residue on antifreeze cap
by ram_man
05/28/15 10:58 PM
Spark Plugs
by BlueOvalFitter
05/28/15 10:51 PM
50s Clinton 2hp Detergent or Non-Detergent SAE 30
by TriMoto
05/28/15 10:48 PM
50w in a 75-90 application
by Dirtracer_17
05/28/15 10:42 PM
Need 75w140 diff oil - 02' superduty with truetrac
by clydesdale
05/28/15 10:02 PM
A/C Lines Freezing Up, Clutch Burning Smell
by ChevyGuy3100
05/28/15 09:44 PM
Walmart valvoline coupons.
by Justin251
05/28/15 09:20 PM
Is it time?
by Jarlaxle
05/28/15 09:20 PM
Newest Members
Cycle009, Zonker, jahmes143, 89gtcs, giantkiller
54141 Registered Users
Who's Online
38 registered (Brad_C, b1amgm47, Atesz792, bradepb, AutoCoil, bourne, 2 invisible), 651 Guests and 112 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
54141 Members
66 Forums
232000 Topics
3719306 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Page 1 of 2 1 2 >
Topic Options
#3338073 - 04/09/14 07:16 PM No more Dex-Cool hysteria?
Nayov Online   content


Registered: 08/01/09
Posts: 809
Loc: ME
Has the formula for Dex-Cool been changed? The horror stories about "Death-Cool" seems to have abated.
Also, the most ubiquitous coolants are Dex clones AM, AM, deemed safe to use in any application. The app-specific coolants for the fanatics are essentially boutique coolants.

A little bit of obsessive thinking went into my selection of coolant for my Nissan, but in the end, I just grabbed Super-Tech; the "proper" choice would have been a so-called Asian formula.

Top
#3338081 - 04/09/14 07:26 PM Re: No more Dex-Cool hysteria? [Re: Nayov]
ls1mike Offline


Registered: 06/14/08
Posts: 3585
Loc: In the Garage...
Most if not all of the GM cars now have a dry intake. Sometime around 04 the gaskets material was changed and problem went away. I do believe, at some point, the formula also under went a change.

I run it in all my stuff with no problems.
_________________________
Mike
00 Trans Am
02 Silverado 2500HD
04 Grand Prix GTP
13 Equinox
12 Passport TT

Top
#3338102 - 04/09/14 07:46 PM Re: No more Dex-Cool hysteria? [Re: Nayov]
xxch4osxx Offline


Registered: 03/11/09
Posts: 1827
Loc: Cedarbrae, Ontario
Dexcool is an excellent coolant. I have it in my Silverado and there is no "dex-sludge" anywhere. Change at the recommended intervals and keep the system topped off and there will be no problems.
_________________________
2004 Chev Silverado 4x4 using all Amsoil lubricants.
2008 Mazda 3 GS Sport Hatchback 5sp MT (Girlfriend's car)


Top
#3338105 - 04/09/14 07:51 PM Re: No more Dex-Cool hysteria? [Re: Nayov]
Chris142 Offline


Registered: 06/05/03
Posts: 12498
Loc: apple valley, ca
works fine with a pressurized bottle. i wont warranty my work if dex is used in a copper radiator or heater. i dont care what the naysayers say...dex will eat solder and cause a leak.
_________________________
02 Wrangler durablend 10w40
87 F250 Diesel Mystic 15w50
04 Tahoe super-s 5w30
Z400 Lucas 10w30
KLR250 Maxima 10w40
Polaris Trailblazer delo 5w40

Top
#3338107 - 04/09/14 07:55 PM Re: No more Dex-Cool hysteria? [Re: Chris142]
Nayov Online   content


Registered: 08/01/09
Posts: 809
Loc: ME
Originally Posted By: Chris142
works fine with a pressurized bottle. i wont warranty my work if dex is used in a copper radiator or heater. i dont care what the naysayers say...dex will eat solder and cause a leak.


Well now you've got me worried. I have a brass and soldered transmission cooler in my radiator.
Can you elaborate?

Top
#3338111 - 04/09/14 07:56 PM Re: No more Dex-Cool hysteria? [Re: Nayov]
faramir9 Offline


Registered: 06/01/12
Posts: 362
Loc: PA
I ran nothing but Dex-Cool in my '04 Chevy (Malibu) Classic and now only Dex-Cool in my 2000 Saturn SL1. The coolant itself is fine; it really does last longer, in my experience, though it's too soon to tell with the Saturn.

The problem was the combination of Dex and the plastic intake manifold gaskets on GM V-6s in the '90s till about 2003. Without the plastic gaskets, the "pink (or red) stuff" is fine. Some owners of affected vehicles will never use Dex again, and I don't blame them, based on GM's refusal-at-first to issue a recall. But Dex-cool with an engine/coolant system that can handle it is good stuff.
_________________________
2000 Saturn SL1, 1.9 SOHC
M1 EP 5w-30, Fram Ultra XG3600
Cooper CS3 185/65R14, made in USA

2004 Chevy Malibu LS, 3.5L V-6
Valvoline 5w-30

Top
#3338114 - 04/09/14 07:59 PM Re: No more Dex-Cool hysteria? [Re: xxch4osxx]
faramir9 Offline


Registered: 06/01/12
Posts: 362
Loc: PA
Originally Posted By: xxch4osxx
Dexcool is an excellent coolant. I have it in my Silverado and there is no "dex-sludge" anywhere. Change at the recommended intervals and keep the system topped off and there will be no problems.


Yep, topped-off is key. In fact, GM claimed that affected vehicles were neglected by owners who let the coolant run low---i.e. did not know via telepathy that the Full mark on the coolant surge bottle was like the E on the gas gauge....
_________________________
2000 Saturn SL1, 1.9 SOHC
M1 EP 5w-30, Fram Ultra XG3600
Cooper CS3 185/65R14, made in USA

2004 Chevy Malibu LS, 3.5L V-6
Valvoline 5w-30

Top
#3338126 - 04/09/14 08:11 PM Re: No more Dex-Cool hysteria? [Re: faramir9]
Trav Offline


Registered: 11/20/06
Posts: 11758
Loc: MA, Mittelfranken.de
IIRC the latest and best aluminum frame intake gaskets for the Gen ii were released around 08 or 09.
Before that was plastic frame inc FelPro replacements. Gen II engines repaired with the plastic frame gaskets continued to fail.
Gen III was introduced in 2004 with aluminum upper intake and different gasket it didn't suffer the issue as bad as the Gen II. The issue was put to be once and for all in 08.

The 3.1 and 3.4 suffered this ailment up to the end although the aftermarket offered a better problem solver intake gasket that seemed to be very effective.
_________________________
ASE L1, Master. Deutsch Meisterbrief.

Top
#3338156 - 04/09/14 08:31 PM Re: No more Dex-Cool hysteria? [Re: Nayov]
Realtech214 Offline


Registered: 02/01/13
Posts: 641
Loc: Florida
Cant go wrong with dexcool or any amam coolant imo. I have used prestone dexcool but will use supertech amam in the future
_________________________
2003 Suburban PYB
2001 Suburban PYB
- - - - - - - - -- - - - - - - -- - - - - - -- - -
I like oil too much & ALWAYS PYB

Top
#3338172 - 04/09/14 08:39 PM Re: No more Dex-Cool hysteria? [Re: Nayov]
crazyoildude Offline


Registered: 07/23/08
Posts: 6727
Loc: new jersey
dex cool sludges engines so badly sometimes that we have to replace the radiators when we rebuild the engine if we are going to warranty it

Top
#3338186 - 04/09/14 08:50 PM Re: No more Dex-Cool hysteria? [Re: Nayov]
Pablo Offline


Registered: 10/28/02
Posts: 46827
Loc: Duvall WA - Pacific NW USA
I think people quit buying into "it mixes with anything" hype, change it a bit more regularly and use it (mainly) in compatible systems. Early on, people ignored these things and didn't change over their cooling systems properly so they paid the horrendous "cost" of eaten radiators, leaks and death of other cooling system parts.

Top
#3338209 - 04/09/14 09:29 PM Re: No more Dex-Cool hysteria? [Re: Nayov]
beast3300 Offline


Registered: 12/24/09
Posts: 3052
Loc: Ohio
Honestly I will never use it after the junk I see at work. G-05 based coolant has been flawless for me. I peeled the intakes off of 3 cars in a row that I owned and the intake was immaculate using the "Kameleon" G-05 from Safety Kleen we stock. Thanks but no thanks on the Dexcool.


Edited by beast3300 (04/09/14 09:30 PM)
Edit Reason: spelling
_________________________
'03 Regal GS L67 3.29 GR:, PU 5w30 (not PUP)/TG3980, Filtermag

'99 Grand Prix L36: QS Defy 5w30, OCOD 3387A, Filtermag


Top
#3338218 - 04/09/14 09:32 PM Re: No more Dex-Cool hysteria? [Re: Nayov]
dishdude Offline


Registered: 11/14/08
Posts: 4083
Loc: Phoenix
The only Hysteria in my GM is a Def Leppard CD.

Top
#3338238 - 04/09/14 10:10 PM Re: No more Dex-Cool hysteria? [Re: Nayov]
jrustles Offline


Registered: 02/24/13
Posts: 2035
Loc: Ontario, Canada
2-eha, don't need it, don't want it.

I can barely tell the level in the Pontiac's pressure bottle because of a thick opaque layer of pink scum from the original Dexcool
_________________________
"No matter how paranoid or conspiracy-minded you are, what the government is actually doing is worse than you imagine" W.Blum

Top
#3338250 - 04/09/14 10:29 PM Re: No more Dex-Cool hysteria? [Re: Nayov]
Chris142 Offline


Registered: 06/05/03
Posts: 12498
Loc: apple valley, ca
Originally Posted By: Nayov
Originally Posted By: Chris142
works fine with a pressurized bottle. i wont warranty my work if dex is used in a copper radiator or heater. i dont care what the naysayers say...dex will eat solder and cause a leak.


Well now you've got me worried. I have a brass and soldered transmission cooler in my radiator.
Can you elaborate?
your trans cooler is silver soldered together. it should be ok. its our 60\40 radiator solder which is very soft that dex eats.
_________________________
02 Wrangler durablend 10w40
87 F250 Diesel Mystic 15w50
04 Tahoe super-s 5w30
Z400 Lucas 10w30
KLR250 Maxima 10w40
Polaris Trailblazer delo 5w40

Top
Page 1 of 2 1 2 >