Recent Topics
Green coolant, future availability ?
by rubberchicken - 11/16/19 06:11 PM
Weird tire wear
by ledslinger - 11/16/19 04:50 PM
Why does Ford resell lemons?
by avacado11 - 11/16/19 04:07 PM
Slow initial response to loading web pages
by JHZR2 - 11/16/19 04:06 PM
Motorcraft FL-910S
by PW01 - 11/16/19 03:54 PM
Walmart ammo clearance
by redbone3 - 11/16/19 03:35 PM
GENERAL Q regarding SPX snow plow
by Kira - 11/16/19 03:13 PM
78 C10 at show
by WiskyBadger - 11/16/19 03:00 PM
300blk ammo?
by buck91 - 11/16/19 02:52 PM
The Rock is still alive!
by Char Baby - 11/16/19 02:48 PM
Weird fuel leak
by BeerCan - 11/16/19 01:02 PM
Sinopec 75w-90 Synthetic
by jdw1222 - 11/16/19 12:51 PM
Honda Oil Filter
by miden851 - 11/16/19 12:28 PM
VOA for QSAD 10w-40?
by natas - 11/16/19 12:02 PM
Ford v Ferrari - anyone seen the movie yet?
by Oro_O - 11/16/19 12:01 PM
who made this??
by ted s - 11/16/19 11:41 AM
Drill Bits
by MasterSolenoid - 11/16/19 11:32 AM
2000 Honda Insight Crunchy 1st & 2nd
by Rmay635703 - 11/16/19 09:32 AM
Update Site to VerticalScope Inc board?
by CB900F2 - 11/16/19 09:27 AM
Newest Members
billad67, aka_Claus, Diverdown, natas, matt3540
69886 Registered Users
Who's Online Now
105 registered members (AC1DD, 4WD, 86lxjunker, 77GrandPrix, 2003f7, 10 invisible), 2,118 guests, and 24 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics297,515
Posts5,117,184
Members69,886
Most Online3,589
Nov 2nd, 2019
Donate to BITOG
Print Thread
Hop To
Page 1 of 2 1 2
Coolant upgrade for 76 Oldsmobile? #5129676 06/09/19 07:15 PM
Joined: Dec 2005
Posts: 1,213
C
caprice_2nv Offline OP
OP Offline
C
Joined: Dec 2005
Posts: 1,213
I'm due to flush the cooling system again on my 84 Oldsmobile with a 76 350 engine. It still has green coolant in it, but I'm wondering if there is any reason not to put dexcool or some other long life coolant in it? I wouldn't mind spending a little extra if it might last longer or have any other benefits.


84 Olds Cutlass - 350 Olds
83 Chevy Caprice - 305 Sbc
79 Honda CX500
Re: Coolant upgrade for 76 Oldsmobile? [Re: caprice_2nv] #5129681 06/09/19 07:24 PM
Joined: May 2010
Posts: 10,585
S
spasm3 Offline
Offline
S
Joined: May 2010
Posts: 10,585
Maybe G-05, but i'd not put dex-cool in it if it has original gaskets, especially the head gaskets. Green is safest for it.

Last edited by spasm3; 06/09/19 07:24 PM.

13 elantra 78k 5w30 synpwr
03 chevy avalanche 83k synpwr 5w30
17 mazda cx-5 16400 miles m1 0w40
Re: Coolant upgrade for 76 Oldsmobile? [Re: caprice_2nv] #5129692 06/09/19 07:35 PM
Joined: Jun 2003
Posts: 19,754
C
Chris142 Offline
Offline
C
Joined: Jun 2003
Posts: 19,754
Dexcool or any long life coolant will eat the solder out of the radiator and heater. likely the intake and head gaskets too.


02 Wrangler Napa high milage 10w40
87 F250 Valvoline 15w40
07 fjcruiser Car lube plus 10w30
Z400 castrol T 10w40
Can am Maveric edge 5w40
57 case tractor Chevron sae30
Re: Coolant upgrade for 76 Oldsmobile? [Re: caprice_2nv] #5129704 06/09/19 07:40 PM
Joined: Apr 2010
Posts: 2,984
A
atikovi Offline
Offline
A
Joined: Apr 2010
Posts: 2,984
I used this in a 92 Eighty-Eight. Extended life and green for an original look.

[Linked Image]

Re: Coolant upgrade for 76 Oldsmobile? [Re: caprice_2nv] #5129708 06/09/19 07:43 PM
Joined: Sep 2011
Posts: 127
6
65f100 Offline
Offline
6
Joined: Sep 2011
Posts: 127
Zerex Original Green claims a 5 years service life and would be completely compatible with your system.

Re: Coolant upgrade for 76 Oldsmobile? [Re: caprice_2nv] #5129732 06/09/19 08:11 PM
Joined: Oct 2005
Posts: 4,657
K
Kruse Offline
Offline
K
Joined: Oct 2005
Posts: 4,657
If it was mine, I'd just use the original green, still available at farm supply stores and some auto supply stores.
Or, if you've got a few more dollars to spend, buy some John Deere Cool Guard.

Re: Coolant upgrade for 76 Oldsmobile? [Re: caprice_2nv] #5129748 06/09/19 08:26 PM
Joined: Jun 2002
Posts: 13,367
K
Kestas Offline
Global Moderator
Offline
Global Moderator
K
Joined: Jun 2002
Posts: 13,367
Does your car have a soldered copper/brass radiator and heater core? If so, I vote for Zerex Original Green.

Re: Coolant upgrade for 76 Oldsmobile? [Re: caprice_2nv] #5129788 06/09/19 09:08 PM
Joined: Dec 2002
Posts: 43,314
J
JHZR2 Offline
Global Moderator
Offline
Global Moderator
J
Joined: Dec 2002
Posts: 43,314
Green, which is different than what was sold years back; G-05; or John Deere Cool Gard II.

You do need to know what sort of brass/copper soldered stuff you have in that vehicle...

Re: Coolant upgrade for 76 Oldsmobile? [Re: caprice_2nv] #5129884 06/10/19 01:56 AM
Joined: Oct 2015
Posts: 3,240
F
FordCapriDriver Offline
Offline
F
Joined: Oct 2015
Posts: 3,240
I would use Zerex Original Green.

What's cool about it is that it's actually not a IAT formula.

It's a coolant developed by Glysantin which is sold by Glysantin and also Comma in Europe as "G64" originally for Volvo trucks i believe, it's what they call a PSi-OAT ( Phosphate + Silicate + OAT ) i am quite sure it does not have 2-Eha so it will not corrode solder.

Last edited by FordCapriDriver; 06/10/19 01:57 AM.

1975 Ford Capri II Ghia 3000 V6 - Repsol Elite Super 20W-50
1988 Ford Escort XR3i Cabrio - Shell Rimula R4X 15W-40 HDEO

Re: Coolant upgrade for 76 Oldsmobile? [Re: JHZR2] #5129936 06/10/19 04:52 AM
Joined: Dec 2009
Posts: 28,128
G
Garak Offline
Offline
G
Joined: Dec 2009
Posts: 28,128
Originally Posted by JHZR2
Green, which is different than what was sold years back; G-05; or John Deere Cool Gard II.

You may have to settle for JHZR2's suggestion given the difficulty in obtaining original green these days in Canada. I haven't seen a jug at a supplier for years, with the last being at Partsource. I believe Oil Mart markets a conventional green at a good price, but I'm not sure how close you are to one.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Coolant upgrade for 76 Oldsmobile? [Re: caprice_2nv] #5129947 06/10/19 05:08 AM
Joined: Dec 2005
Posts: 1,213
C
caprice_2nv Offline OP
OP Offline
C
Joined: Dec 2005
Posts: 1,213
Sorry, I left out a couple of things...it's a newer aluminum radiator. A newer heater core (also aluminum). Original steel shim head gaskets.

Intake gaskets are fel pro recently replaced because of some minor pitting on the Edelbrock aluminum intake manifold.

Last edited by caprice_2nv; 06/10/19 05:10 AM.

84 Olds Cutlass - 350 Olds
83 Chevy Caprice - 305 Sbc
79 Honda CX500
Re: Coolant upgrade for 76 Oldsmobile? [Re: Chris142] #5129948 06/10/19 05:13 AM
Joined: Apr 2010
Posts: 2,984
A
atikovi Offline
Offline
A
Joined: Apr 2010
Posts: 2,984
Originally Posted by Chris142
Dexcool or any long life coolant will eat the solder out of the radiator and heater. likely the intake and head gaskets too.


Do you have any links that support that?

Re: Coolant upgrade for 76 Oldsmobile? [Re: Garak] #5129958 06/10/19 05:33 AM
Joined: Dec 2005
Posts: 1,213
C
caprice_2nv Offline OP
OP Offline
C
Joined: Dec 2005
Posts: 1,213
Originally Posted by Garak
Originally Posted by JHZR2
Green, which is different than what was sold years back; G-05; or John Deere Cool Gard II.

You may have to settle for JHZR2's suggestion given the difficulty in obtaining original green these days in Canada. I haven't seen a jug at a supplier for years, with the last being at Partsource. I believe Oil Mart markets a conventional green at a good price, but I'm not sure how close you are to one.


I can easily go to a John Deere supplier around here. I appreciate that advice.

The last time I bought green coolant it seemed like they only carried the bottom of the line cheapest stuff in green (certified brand at Canadian tire I think). I don't really want to cheap out on fluids in a 35 year old car that I might drive daily another 20 years. The past 12 years went by extremely fast and I've had to replace the heater core twice and have the rad welded (the rad was 15+ years old). The rad repair guy told us to install a ground strap because there was electrolysis happening inside.


84 Olds Cutlass - 350 Olds
83 Chevy Caprice - 305 Sbc
79 Honda CX500
Re: Coolant upgrade for 76 Oldsmobile? [Re: caprice_2nv] #5129974 06/10/19 06:26 AM
Joined: Dec 2009
Posts: 28,128
G
Garak Offline
Offline
G
Joined: Dec 2009
Posts: 28,128
Yes, and Canadian Tire doesn't even carry it anymore. The last I saw on the shelf was Texaco stuff at Partsource. Perhaps a Partsource in your neck of the woods may still have it. I don't think even Rechochem is making original green these days, and they make up whatever a company wants, plus a bunch of jobber stuff.

The other option would be a Chevron lubricant distributor (Husky/Mohawk handles that out west), if you can find one, since there still is a Havoline branded conventional green listed on the Chevron site. I can't say for out there, but here, a number of trucking outfits carry a lot of Chevron products, and one may be able to do a special order. Given the coolant capacity of vehicles like yours, it's probably not outrageous to buy a box of four jugs.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Coolant upgrade for 76 Oldsmobile? [Re: caprice_2nv] #5130014 06/10/19 07:27 AM
Joined: Aug 2015
Posts: 3,361
B
BigD1 Offline
Offline
B
Joined: Aug 2015
Posts: 3,361
Pretty sure Dexcool has been re-formulated multiple times over the years, but there is no way I would ever trust it in an old car. My 98 Malibu that I bought brand new looked like the pictures from San Carlos Radiator linked below.

Select photo album Dexcool.

http://www.sancarlosradiator.com/photo_gallery.htm


1992 Toyota Pickup--AmazonBasics Conventional--10W-30--Toyota 90915YZZD1
Page 1 of 2 1 2
Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™