2024 Canadian Poncho Calendars are Now Available! CLICK HERE

 

 

Members Login
Username 
 
Password 
    Remember Me  
Post Info TOPIC: Looking for a compatible coolant


Addicted!

Status: Offline
Posts: 349
Date:
Looking for a compatible coolant


During this hot summer the engine ran hot because the rad was low. I topped it up with about 2 litres of distilled water. and intended to flush the system later in the year. Problem I have is to find a coolant compatible with the original engine and radiator. looking on line, Recommendations are to stay away from long-life coolants and only use the green coloured coolant (not Orange or Yellow), and that it is IAT not OAT. The service manual also recommended compatibility to GM1899M and GM1825M. Walmart has 3 possibles that might be acceptable, but I'm confused. 

Any recommendations?



-- Edited by Lad820 on Tuesday 31st of October 2017 04:40:21 PM

Attachments
__________________

'62 Pontiac Parisienne

'83 Datsun 200SX

Winnipeg, MB.



Canadian Poncho Superstar!

Status: Offline
Posts: 4995
Date:



www.evanscoolant.com


 

 

 



__________________


A Poncho Legend!

Status: Offline
Posts: 48634
Date:

You know my bias but I'd go buy some AC Delco green anti freeze.

__________________

1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



Canadian Poncho Superstar!

Status: Offline
Posts: 7418
Date:

At a POCI conference maybe 10 years ago, John Sawruk of Pontiac Engineering indicated they suggest a 50/50 mix of distilled water and Prestone. I've never had any problem using that combination.

__________________
70 2+2 convertible
70 2+2 hardtop
70 Parisienne hardtop
72 GMC Sierra

 

 



Addicted!

Status: Offline
Posts: 483
Date:

So glad you posted, I nearly forgot to check my percentage before the first frost!

__________________


Canadian Poncho Superstar!

Status: Offline
Posts: 5990
Date:

seventy2plus2 wrote:

At a POCI conference maybe 10 years ago, John Sawruk of Pontiac Engineering indicated they suggest a 50/50 mix of distilled water and Prestone. I've never had any problem using that combination.


 What Clint said has always worked for me in over 40 years.



__________________

1957 Pontiac Pathfinder Deluxe sedan restored 261 six

1974 Chevrolet Caprice Estate wagon low mileage original 400 V-8



Canadian Poncho Superstar!

Status: Offline
Posts: 5990
Date:

I do not want to even know what the so called (water less coolant) costs. I guess for non cast iron engines it must be the best way to go, but for regular run of the mill cast iron engines i will stick with my old formula. I have always used 50% distilled water and 50 % quality (green) coolant. Never had any issues even when i tore my motors apart and looked to see. 



__________________

1957 Pontiac Pathfinder Deluxe sedan restored 261 six

1974 Chevrolet Caprice Estate wagon low mileage original 400 V-8



Guru

Status: Offline
Posts: 819
Date:

I just used 50% Prestone concentrate and 50% Turbo deionized water from Cdn Tire. The deionized water is suitable for cooland and battery top up according to the label. Its not exactly green but the smaller droplets look green. It just seems that the more you read about cooland the more confusing the infromation is.



__________________

Now appearing as "68 Grande" 



A Poncho Legend!

Status: Offline
Posts: 48634
Date:

Boy, I've never used anything but good old tap water and GM coolant, 50/50 mix. What you guys are doing may well be better but it's always been ok for me and I've owned some cars for many many years, one of them was 27 years.

__________________

1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



Guru

Status: Offline
Posts: 819
Date:

My manual calls for GM 1899M just like Lad820 has indicated in his original post. I kind of wished I would have used GM green but I ended up picking up some Prestone concentrate that is suppose to be compatible with all makes. I also picked up some de ionized water to mix it with.

If you read up online, you will see posts that say "stay away from dexcool", "stay away from extended life coolant", "don't use yellow", "don't use orange", "don't use distilled water as it is metal hungry", "don't use de ionized water because it is metal hungry", "don't use tap water because the impurities in the water will pollute your system and react with everything" etc, etc.

I think now I wished I would have picked up some GM or AC Delco green but I can't or could not find any tech bulletins that would indicate Prestone concentrate (not dex cool) would be chemically incompatible. Good discussion as I became somewhat bewildered regarding the contrasting info on coolant.

GM green might be the best solution but, is there any other opinion or data available that can be posted?

__________________

Now appearing as "68 Grande" 



Addicted!

Status: Offline
Posts: 322
Date:

I have only once not used GREEN. That was on my '98 Safari and that cost me a new set of intake gaskets. The crap from the factory ate through them. So the first thing I do is check to see what is in the rad. My two cents.

Luppy



__________________


A Poncho Legend!

Status: Offline
Posts: 48634
Date:

Same thing I've seen a number of times on other vehicles and also one of mine. It eats up o-rings. Green forever!

__________________

1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



Canadian Poncho Superstar!

Status: Offline
Posts: 7418
Date:

Is Prestone concentrate considered "Green"? I'm somewhat surprised by all the comments.

__________________
70 2+2 convertible
70 2+2 hardtop
70 Parisienne hardtop
72 GMC Sierra

 

 



Guru

Status: Offline
Posts: 819
Date:

Not sure if Prestone concentrate is considered "green". It certainly is not dark green, looks almost clear, smaller drops look green but the chemical makeup was what I was concerned with. I am a bit concerned because I have a new engine sitting in storage and I am wondering I need to go drain this stuff out and replace with a coolant that is "green".

Here is some info on Prestone concentrate from what I can find online.

www.pepboys.com/product/details/9307681/01036

Formulated free of silicates, phosphate, borate and nitrate
Designed to give your engine 5 year, 150,000 miles protection when added to extended life antifreeze/coolants
Meets or exceeds ASTM D-3306 and ASTM D-4985



images.oreillyauto.com/uploads/pdf/ad/SD_672%20AFZ%20Comparison%20Chart-1.pdf







__________________

Now appearing as "68 Grande" 



Canadian Poncho Superstar!

Status: Offline
Posts: 10063
Date:

Late to the show, but in your case keep it simple. I always use CARQUEST conventional green #101. Had it in my 67 with the 350 at 50/50 and tapwater, and when I did the big block the coolant being drained out looked like new even after 4 years. The aluminum rad looked great as well. I would not bother with extended life coolants in an older system. Cheers.

anti.JPG

 



Attachments
__________________
65 Laurentian post, 67 Grande Parisienne 4 door HT. 
 


Canadian Poncho Superstar!

Status: Offline
Posts: 5278
Date:

I've always used regular Prestone with 50/50 deionized. Deionized is just pure water, tap water will have whatever impurities your water has in it. My water is high in iron for instance, your water may have something else in it. I've never had a rad or heater core go bad using Prestone. I consider it green.
Deionized is cheap at Canadian Tire and if it is good for use in a lead acid battery, I figure it must be good inside my old cooling system.

I use long life, if that's what in my modern vehicles, never lost a rad there either.

__________________

63 Parisienne sport coupe (The Big GTO), black, maroon interior, 409 4 speed; former owner of a 59 El Camino, 63 Corvette SWC, 62 Chev Bel Air SC.
1963- Pontiac top selling car in Canada

Mahone Bay, NS Still not old enough to need an automatic



A Poncho Legend!

Status: Offline
Posts: 20744
Date:

DonSSDD wrote:

I've always used regular Prestone with 50/50 deionized. Deionized is just pure water, tap water will have whatever impurities your water has in it. My water is high in iron for instance, your water may have something else in it. I've never had a rad or heater core go bad using Prestone. I consider it green.
Deionized is cheap at Canadian Tire and if it is good for use in a lead acid battery, I figure it must be good inside my old cooling system.

I use long life, if that's what in my modern vehicles, never lost a rad there either.


 Yes, being on a well, like me, would justify using deionized water.

I think a lot of people over-think stuff, just use original Prestone 50-50.



__________________

Prince Edward Island

'64 Parisienne CS "barn find" - last on the road in '86 ... Owner Protection Plan booklet, original paint, original near-mint aqua interior, original aqua GM floor mats, original 283, factory posi, and original rust.



A Poncho Legend!

Status: Offline
Posts: 48634
Date:

I guess I never thought of the water being an issue just because we have good river water here. We have no issues with iron, minerals etc in our water. No wells here because when you drill one it's pretty much the same as ocean water, it just comes out white with salt and kills any vegetation it gets to.

__________________

1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



Canadian Poncho Superstar!

Status: Offline
Posts: 5278
Date:

Pontiacanada wrote:
DonSSDD wrote:

I've always used regular Prestone with 50/50 deionized. Deionized is just pure water, tap water will have whatever impurities your water has in it. My water is high in iron for instance, your water may have something else in it. I've never had a rad or heater core go bad using Prestone. I consider it green.
Deionized is cheap at Canadian Tire and if it is good for use in a lead acid battery, I figure it must be good inside my old cooling system.

I use long life, if that's what in my modern vehicles, never lost a rad there either.


 Yes, being on a well, like me, would justify using deionized water.

I think a lot of people over-think stuff, just use original Prestone 50-50.


 They charge the same price for the 50/50 stuff, the jug of deionized water is just next to the 100% stuff and costs around $2.00, so you get 2 jugs of 50/50 for almost half price.

 

Carl, we only have dug wells around here, drilled wells get salt water, arsenic, some have sulphur, might clog up my rad.peace.gif



__________________

63 Parisienne sport coupe (The Big GTO), black, maroon interior, 409 4 speed; former owner of a 59 El Camino, 63 Corvette SWC, 62 Chev Bel Air SC.
1963- Pontiac top selling car in Canada

Mahone Bay, NS Still not old enough to need an automatic



A Poncho Legend!

Status: Offline
Posts: 35601
Date:

Carl Stevenson wrote:

Boy, I've never used anything but good old tap water and GM coolant, 50/50 mix. What you guys are doing may well be better but it's always been ok for me and I've owned some cars for many many years, one of them was 27 years.


        x 2      the economy, runs on a large percentage of sales of snake oil products  lol .   (2 cents) 



__________________

 

Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.

Tweet this page Post to Digg Post to Del.icio.us
.
Support Canadian Poncho!
Select Amount:
<
.
.
.