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Old 10-23-2011, 08:08 AM   #1
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99 TJ - Zerex G-05 or Zerex Green?

Doing a coolant flush for the first time on my recently purchased 99 TJ, I see that originally it came with Zerex Green (green is in it now). I know to mix with distilled water, but better/OK to use the G-05 instead of the original green when refilling? Thanks!

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Old 10-23-2011, 08:39 AM   #2
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G-05, lasts 100k miles. much better stuff.

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Old 10-23-2011, 12:22 PM   #3
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Green was O.E. through the 2000 Model year GO-5 started in 2001,Personaly I would go with the Green & change it every 3 years or 36000 miles.
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Old 10-23-2011, 10:20 PM   #4
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Originally Posted by gmiller0737 View Post
Green was O.E. through the 2000 Model year GO-5 started in 2001,Personaly I would go with the Green & change it every 3 years or 36000 miles.
so you're saying you'd rather NOT use a superior coolant that has better anti-corrosion properties, which needs changed 4-5 times less, has a smaller impact on the environment and is being used by many demanding automotive & industrial manufacturers?

welp, your choice
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Old 10-24-2011, 06:19 AM   #5
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So if I have an 01 with 74K miles I can wait until I hit 100K before I do my first flush? Or is it based on time or miles?
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Old 10-24-2011, 08:08 AM   #6
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Lots of low silicate, long life coolants out there these days, in whatever color.
Zerex Chart: Valvoline.com > Products > Antifreeze Radiator Products > Antifreeze > Zerex® Original Green Antifreeze / Coolant

Take a look at Peak "Lifetime" coolant if not wanting to change for the remaining life of the vehicle: PEAK GLOBAL® LIFETIME® Antifreeze & Coolant

The Zerex OG is likely good for 5/100,000 (check the container as they don't tell you in their ads) and the G-05 for 5/150,000.

Take a look at this Zerex site for comparisons: http://www.englefieldoil.com/PDF/Zerex_chart.pdf They do state the life of the green coolant there.

Staying with the green should be just fine for your vehicle.
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Old 10-24-2011, 09:54 AM   #7
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If you will take the trouble to flush your cooling system to get rid of all of the old incompatible coolant first, G-05 HOAT is a superior coolant.
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Old 10-24-2011, 10:03 AM   #8
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Quote:
Originally Posted by TJeepman
Lots of low silicate, long life coolants out there these days, in whatever color.
Zerex Chart: Valvoline.com > Products > Antifreeze Radiator Products > Antifreeze > Zerex® Original Green Antifreeze / Coolant

Take a look at Peak "Lifetime" coolant if not wanting to change for the remaining life of the vehicle: PEAK GLOBAL® LIFETIME® Antifreeze & Coolant

The Zerex OG is likely good for 5/100,000 (check the container as they don't tell you in their ads) and the G-05 for 5/150,000.

Take a look at this Zerex site for comparisons: http://www.englefieldoil.com/PDF/Zerex_chart.pdf They do state the life of the green coolant there.

Staying with the green should be just fine for your vehicle.
It's not a good idea to put anything but
G-05 in your jeep. There are different "formulations" required by different car manufacturers to be compatible with their system. I wouldn't risk anything else.

Of course strictly talking about OAT/HOAT coolant. The typical green stuff will work just fine.
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Old 10-24-2011, 10:48 AM   #9
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Originally Posted by freeskier View Post
It's not a good idea to put anything but
G-05 in your jeep. There are different "formulations" required by different car manufacturers to be compatible with their system. I wouldn't risk anything else.

Of course strictly talking about OAT/HOAT coolant. The typical green stuff will work just fine.
I agree.

There is a Zerex Chart for use per vehicle year/manufacturer at http://www.valvoline.com/pdf/Zerex_CoolantChart.pdf For the 1999 Chrysler lineup, it shows "green".

As far as topping up, the OAT formulations (no silicates) are more widely available than HOAT (low silicates). I don't expect HOAT to be around much longer. I think Ford is getting away from it already. If you are looking for HOAT (G-05) at a gas stop, you are not likely to find it. Even Canadian Tire, a big automotive parts chain in Canada, doesn't carry it here. The simplist solution is the "original green" formulation for sure. I have actually used the green stuff in my 2002 Caravan for 3 years and it didn't blow up. As of November last year, it has the Zerex G-05.

As with motor oils and filters, now coolants, the auto manufacturers/industry are masters at confusing the Customer.
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Old 10-24-2011, 11:04 AM   #10
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Im still running the green stuff. I have to flush the coolant again before winter (never ever use that stupid radiator stop leak. It gets in the heater core and is still turning my coolant black) and I might consider switching, but only if i can find it at a local store.
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Old 10-24-2011, 12:17 PM   #11
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Napa carries G05
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Old 10-24-2011, 12:30 PM   #12
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Napa carries G05
Not all of them, they are franchises and it's up to the owner what they stock. The Napa's dont have it near me, but Bumper2Bumper did.
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Old 10-24-2011, 01:10 PM   #13
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Hmm all the napas that I have ever used always carried some...
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Old 10-25-2011, 07:21 AM   #14
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Since I'm doing a full flush, think I'll go with the G-05 if I can find it at my local NAPA, as I'd like to use the best stuff possible since I plan to keep this Jeep for a long time. Thanks for all of the responses - you guys are great! As I said before, I love this place!
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Old 10-25-2011, 09:54 AM   #15
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Another vote here for using "green" or "any color" coolant. The "any color" coolants are good for 100k miles and are available everywhere. If I make it 100k miles without anything in the coolant system needing to be changed (pump, thermostat, hoses, etc), I consider myself lucky. Therefore, there is no reason to have a lifetime coolant in my opinion.

Just be sure to flush if you are switching brands or types.
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Old 10-25-2011, 11:20 AM   #16
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Originally Posted by miketx View Post
Another vote here for using "green" or "any color" coolant. The "any color" coolants are good for 100k miles and are available everywhere. If I make it 100k miles without anything in the coolant system needing to be changed (pump, thermostat, hoses, etc), I consider myself lucky. Therefore, there is no reason to have a lifetime coolant in my opinion.

Just be sure to flush if you are switching brands or types.
I agree on the any color coolant. Peak coolants have been around for awhile and seem to the the most available brand here. Can't go wrong with Peak.

Some run coolant a lot longer than they should and get away with it, it seems.

The trend seems to be to have little or no silicates. In the past, silicates were beneficial to stop small leaks. I understand they cause problems with diesel engines. OAT type coolants, which are the most popular ones, have no silicates. Funny thing, the last time I checked (last year I believe), Zerex "green" had less silicates than Zerex G-05. Go figure on that one. Both are low silicates coolants. Marketing, it's all marketing, the strategy being "how best to confuse the Customer".
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Old 10-25-2011, 11:34 AM   #17
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Looking at the zerex website their comparison chart classifies both the original green stuff and g-05 as low silicate. If chrysler had specd an OAT i think it would be more beneficial to switch, but I'm not seeing the huge need to run a low availability HOAT coolant.
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Old 01-19-2013, 12:45 PM   #18
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Exclamation

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Originally Posted by DevilDogDoc View Post
Napa carries G05
+1 , NAPA Canada carries it and if not in stock
they'll bring it in...I looked at the local shop's with no luck
although Co-Op or UFA might.
The dealership wanted $38 a jug

I'm in the process of replacing my cratering stock radiator with a Mishimoto Jeep TJ (04) (brackets are on the new ones) - and I am doing the thermostat and the hoses as well at the same time... I figured I'm there now anyhow...
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Old 07-04-2013, 02:45 PM   #19
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Originally Posted by UnlimitedLJ04 View Post
so you're saying you'd rather NOT use a superior coolant that has better anti-corrosion properties, which needs changed 4-5 times less, has a smaller impact on the environment and is being used by many demanding automotive & industrial manufacturers?

welp, your choice
Possibly.
Bringing this Thread back from the dead...

In addition to what gmiller0737 posted in #3, thought I also read somewhere that prior to a certain year, Zrerex recommended a more OEM formulation as opposed to the HOAT of the G-05.
My Jeep is a 1999, and I too seem to recall the cutoff/switchover date was later that 1999: Maybe 2000 or 2001.

Jerry: Do I correctly understand Post 7 to indicate that irrespective of the year, if the cooling system is thoroughly flushed, the use of G-05 should not an issue regardless of the year of the Jeep?
More than interested in hearing your take on this.

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Old 07-04-2013, 02:55 PM   #20
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I have a 2004 and live in a small town, we have the normal auto parts chains and walmart....no G-05

what is so wrong with the "all models" stuff? I honestly doubt I'll have the jeep for a 100,000 miles so does it really matter?
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Old 07-04-2013, 05:02 PM   #21
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My 98 has fairly fresh 3yr green in it thanks to the previous owner. When the time comes to flush it, I'm switching to G-05. No reason to rush though.
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Old 07-05-2013, 03:38 PM   #22
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Jerry: Do I correctly understand Post 7 to indicate that irrespective of the year, if the cooling system is thoroughly flushed, the use of G-05 should not an issue regardless of the year of the Jeep?
Yes, that is for sure.
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Old 07-06-2013, 09:38 AM   #23
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Yes, that is for sure.
Thanks: Apparently, huk’d on ponix worked fore me
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Old 07-06-2013, 10:11 AM   #24
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G-05 will work just fine, but you must totally flush out the old (if not G-05) coolant or you will end up with "mud" and an a potentially expensive repair.
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Old 07-06-2013, 10:52 AM   #25
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I have used the green stuff for years until last year. The green stuff kept turning rust color after a year. I have had better luck with the G-05 that has been in there almost a year. Both did cool as required though. I just did not want to keep flushing it.

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