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G-05 in a 2000 Saturn #4684799
03/05/18 06:41 AM
03/05/18 06:41 AM
Joined: Jan 2018
Posts: 93
Tennessee, United States
ZraHamilton Offline OP
ZraHamilton  Offline OP
Joined: Jan 2018
Posts: 93
Tennessee, United States
I have a 2000 saturn sl1 with 165k miles. The coolant in it now is the generic green and it's been in there for at least 4 years. I'm going to do a flush and refill. The recommended coolant is dexcool, but I was going to use Zerex G-05 instead. Are there any problems with doing this?

Also, has dexcool cleaned up its act since the sludge issues 10-15 years ago?

Re: G-05 in a 2000 Saturn [Re: ZraHamilton] #4684818
03/05/18 07:15 AM
03/05/18 07:15 AM
Joined: Mar 2013
Posts: 4,763
The Midwest
skyactiv Offline
skyactiv  Offline
Joined: Mar 2013
Posts: 4,763
The Midwest
There are years of opinions concerning Dexcool if you Google it. The only issue I would be worried about is the green coolant you've been using most likely had silicates and so will G-05. Did GM design the water pump shaft seal to be reliable with silicate containing coolants or just Dexcool which is silicate free?


Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual
Re: G-05 in a 2000 Saturn [Re: ZraHamilton] #4684854
03/05/18 08:13 AM
03/05/18 08:13 AM
Joined: Jun 2003
Posts: 17,351
Deplorable in apple valley, ca
Chris142 Online content
Chris142  Online Content
Joined: Jun 2003
Posts: 17,351
Deplorable in apple valley, ca
I'm sure after 18 yrs the wp has been changed.


02 Wrangler durablend 10w40
87 F250 traveler 15w40
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Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: G-05 in a 2000 Saturn [Re: ZraHamilton] #4684980
03/05/18 10:34 AM
03/05/18 10:34 AM
Joined: Jan 2018
Posts: 93
Tennessee, United States
ZraHamilton Offline OP
ZraHamilton  Offline OP
Joined: Jan 2018
Posts: 93
Tennessee, United States
I think it is original. I have noticed black specs in the reservoir which could be from the water pump gasket.

Re: G-05 in a 2000 Saturn [Re: ZraHamilton] #4685039
03/05/18 11:22 AM
03/05/18 11:22 AM
Joined: Nov 2013
Posts: 3,212
Kentucky
Ramblejam Offline
Ramblejam  Offline
Joined: Nov 2013
Posts: 3,212
Kentucky
Originally Posted By: ZraHamilton
Also, has dexcool cleaned up its act since the sludge issues 10-15 years ago?

Sealing material incompatibility with Dex-Cool was never a Saturn S-Series problem. Neglectful owners could cause a few issues, primarily -

1. Mix OAT (Dex-Cool) with conventional green, causing "sludge".
2. Let OAT (Dex-Cool) run low in iron engines, causing internal rust. Your engine is all aluminium, so not applicable.

Do not listen to anyone who tells you there's an issue with this coolant formulation in these cars; I own a '01 SW2.

Could you run G-05? Sure. I don't know why you would though.

Re: G-05 in a 2000 Saturn [Re: ZraHamilton] #4685128
03/05/18 01:00 PM
03/05/18 01:00 PM
Joined: Jun 2014
Posts: 2,453
Phoenix, Arizona - USA
SirTanon Offline
SirTanon  Offline
Joined: Jun 2014
Posts: 2,453
Phoenix, Arizona - USA
If the engine specs Dex-cool, then why not use a simple Dex-clone such as Prestone AMAM, or even WalMart's brand of Dex-clone. Cheap, easy to come by, and essentially what your car specs.

Don't get me wrong, G-05 is great stuff, but why use it if the less-expensive and more commonly-available AMAM products are closer chemically to what your engine 'wants'?


2010 Ford Fusion SE - 2.5 liter/6F35 Trans - 262,000mi
2014 Nissan Altima SL - 2.5 liter/CVT - 57,000mi
Re: G-05 in a 2000 Saturn [Re: ZraHamilton] #4685257
03/05/18 03:03 PM
03/05/18 03:03 PM
Joined: Aug 2010
Posts: 12,903
Northern Kentucky
901Memphis Offline
901Memphis  Offline
Joined: Aug 2010
Posts: 12,903
Northern Kentucky
G05 works great in most any car, just get all the old stuff out first with lots of water. I converted my 2002 Century to G05 when i bought it from the previous owner and it was pretty nasty before, but now its pristine as i recently did the water pump on it. G05 is a great coolant.


2012 Chevy Cruze LT 1.4T - 50k
2002 Buick Century 130k - Built 4T65e(Maxlife) - Edge 0w40 + Fram XG3980
Re: G-05 in a 2000 Saturn [Re: ZraHamilton] #4686427
03/06/18 04:16 PM
03/06/18 04:16 PM
Joined: Dec 2006
Posts: 7,650
Toronto, Canada
KrisZ Offline
KrisZ  Offline
Joined: Dec 2006
Posts: 7,650
Toronto, Canada
Can anyone point me to any semi modern cooling system that would have the water pump shaft lubricated by coolant i.e. sleeve instead of a ball bearing?


2015 Dodge Grand Caravan-27k miles.
2006 Mazda 3-163k miles
Re: G-05 in a 2000 Saturn [Re: ZraHamilton] #4686612
03/06/18 07:30 PM
03/06/18 07:30 PM
Joined: Jan 2004
Posts: 4,155
California
nthach Offline
nthach  Offline
Joined: Jan 2004
Posts: 4,155
California
Originally Posted By: ZraHamilton
I have a 2000 saturn sl1 with 165k miles. The coolant in it now is the generic green and it's been in there for at least 4 years. I'm going to do a flush and refill. The recommended coolant is dexcool, but I was going to use Zerex G-05 instead. Are there any problems with doing this?

Also, has dexcool cleaned up its act since the sludge issues 10-15 years ago?

Why not stick to Dex-Cool or Prestone/SuperTech/house brand all makes all models/universal coolant? A Saturn's engine was pretty modern by GM standards alongside the Northstar V8 of the 1990s.

Dex-Sludge affected GM's all-iron engines that also had "open" cooling systems and in the case of the 1996-2000 truck/van engines and the 3.1/3.4/3.8L car engines the intake manifold gaskets softened up upon exposure to Dex-Cool as the main corrosion inhibitors are known plasticizers - GM used a nylon gasket with silicone sealing beads that was updated to fluoropolymer molded onto a stainless steel carrier.

Re: G-05 in a 2000 Saturn [Re: ZraHamilton] #4686725
03/06/18 08:41 PM
03/06/18 08:41 PM
Joined: Aug 2010
Posts: 1,023
pa
benjy Offline
benjy  Offline
Joined: Aug 2010
Posts: 1,023
pa
get full strength dexcool @ wally's cheap + 88 cent gallons of distilled water, flush with distilled water NOT tap water!!


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