Recent Topics
High mileage oil???
by OneEyeJack
06/29/17 03:27 AM
Question on 30wt oils
by Ammofirst
06/29/17 02:16 AM
True economics of extended oil drains
by userfriendly
06/29/17 12:34 AM
China to mass-produce 400km/h fast train
by L_Sludger
06/29/17 12:06 AM
why is it so hard to find a good body shop?
by tomcat27
06/28/17 11:32 PM
first aid kit..what to put in?
by bmwjohn
06/28/17 11:20 PM
2016 Harley sportster 883 iron
by jkhawaii
06/28/17 11:20 PM
Performed the Citric Acid Flush With Great Results
by DoubleWasp
06/28/17 11:13 PM
Who wants to buy this house?
by Chris142
06/28/17 11:09 PM
Switch from Royal Purple 10-40 to?
by 555
06/28/17 10:26 PM
Boutique/Expensive Oils over standard brands?
by gryffinwings
06/28/17 10:00 PM
Beck/Arnley control arm is Kia/Hyundai OEM
by Klutch9
06/28/17 09:38 PM
MPG after switched to new Mobil1 FS 0w40
by Eugene_Von
06/28/17 09:36 PM
Valvoline Maxlife Full Synthetic 5w30
by bbhero
06/28/17 09:16 PM
Toyo Open Country
by Camprunner
06/28/17 09:15 PM
Red Line 10W-30, 1992 Acura NSX, 3 months
by robertcope
06/28/17 09:10 PM
trans lubrication on startup
by MrTruckDriver
06/28/17 09:08 PM
Gas Pressure washer
by ford46guy
06/28/17 09:07 PM
Valvoline HD CK-4, CJ-4/SN Ford Approved Spec
by fantastic
06/28/17 08:53 PM
Lucas Oil, is it any good?
by Bob570
06/28/17 08:38 PM
Newest Members
fantastic, ACuna545, koryg0327, Fred_L_Johnson, turk182
62006 Registered Users
Who's Online
21 registered (craigq, Claud, Falcon_LS, d00df00d, earlyre, Brad_C, 2 invisible), 1024 Guests and 10 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
62006 Members
66 Forums
267197 Topics
4419486 Posts

Max Online: 3590 @ 01/24/17 08:07 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 Offline


Registered: 08/01/09
Posts: 815
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: 4653
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 WS6 5.7 LS1
02 Silverado 2500HD 6.0
14 Caprice PPV 6.0
15 Malibu LTZ Turbo
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: 2265
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.
_________________________
2015 RAM SXT Crew Cab 5.7 with 6 speed tranny.

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: 15210
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 super-s 10w30
87 F250 proline 15w40
04 Tahoe super-s 5w30
Z400 Lucas 10w30
KLR250 Maxima 10w40
Can am maveric edge 5w40

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


Registered: 08/01/09
Posts: 815
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: 426
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.
_________________________
2005 Corolla LE, 1.8L
PP 5w-30, PZ-38 filter
Continental TrueContact 195/65R15, made in USA



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


Registered: 06/01/12
Posts: 426
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....
_________________________
2005 Corolla LE, 1.8L
PP 5w-30, PZ-38 filter
Continental TrueContact 195/65R15, made in USA



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


Registered: 11/20/06
Posts: 16038
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: 699
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
_________________________
2015 Silverado Crew Cab 5.3 LT
2001 Suburban LT
- - - - - -
- I NEVER THOUGHT I WOULD LIKE OIL SO MUCH -

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


Registered: 07/23/08
Posts: 9808
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
_________________________
Check To See That The Oil Jugs You Buy Have The Exact Amount Of Oil In Them And Have An Inner Seal Under The Cap. I Use Mobil 1 And Fram Ultra Filters

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


Registered: 10/28/02
Posts: 47131
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: 3146
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: PP 5w30/FU3980

'99 Grand Prix L36: QS HM 5w30/STP 3387A E-core, Filtermag

'07 LaCrosse L26: PG 5w30/ProSelect 21040

ASE L1 MT


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


Registered: 11/14/08
Posts: 7390
Loc: Phoenix
The only Hysteria in my GM is a Def Leppard CD.
_________________________
2015 Grand Cherokee 3.6
M1 5w-30 Wix 10010

2017 124 Spider 1.4T
FF

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: 15210
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 super-s 10w30
87 F250 proline 15w40
04 Tahoe super-s 5w30
Z400 Lucas 10w30
KLR250 Maxima 10w40
Can am maveric edge 5w40

Top
Page 1 of 2 1 2 >