Coolant for Old Mopars

[JimKueneman]

Comment on this for old cars?

http://www.oreillyauto.com/site/c/detail/AFZ2/LOWTOX.oap#itemDetailTab_

It is glycol instead of the new modern formulations.

 

[Dennis H]

Green. Old school. 2 years life.

 

[JimKueneman]

Green. Old school. 2 years life.

You are talking just plain old kill the neighbors cat glycol coolant? You can still buy that? ;)

 

[Dennis H]

A shop did the last service. I insisted on green. It looks green and smells like the stuff that kills the ducks. It works too, every 2 years it gets replaced. Cheap insurance. No pink or orange stuff in my old ride. No Dexcool or its impaired stepbrother.

 

[65-440]

I use the cheapest non diluted green coolant I can find .... honestly you can use whatever you like as long as whatever was in there before is completely flushed out, be it green, pink, orange, blue ......

 

[PaveFE]

Zerex Original Green (by Valvoline) Amazon $16

 

[PurpleBeeper]

OK, "Low Tox" means it has propylene glycol instead of ethylene glycol as the "antifreeze" component of the formula. Proplyene glycol won't kill your dog. However, I'm not positive about the rest of the formula. Our old Mopars used "Peak Green" (behind the counter, actual name not just color) which is a phosphate conventional green colored coolant (OEM style). fyi - Peak Long Life green (on the shelf) is actually green-dyed DexCool & will work, but is not what Mopar put in these cars back in the 60's & 70's.

 

[moparjohnny]

OK, "Low Tox" means it has propylene glycol instead of ethylene glycol as the "antifreeze" component of the formula. Proplyene glycol won't kill your dog. However, I'm not positive about the rest of the formula. Our old Mopars used "Peak Green" (behind the counter, actual name not just color) which is a phosphate conventional green colored coolant (OEM style). fyi - Peak Long Life green (on the shelf) is actually green-dyed DexCool & will work, but is not what Mopar put in these cars back in the 60's & 70's.

evans waterless coolant suppose to prevent over heating.

 

[747mopar]

I just buy the cheap green coolant and have for many years.

 

[Ranger16]

This is what I use, but I really don't think WHAT you use is as important how often you change it. I'm with Dennis, every other year is cheap insurance.

 

[JimKueneman]

This is what I use, but I really don't think WHAT you use is as important how often you change it. I'm with Dennis, every other year is cheap insurance.

As long as it is a clean start I think. You don't want to start mixing and matching all the different chemistries they have these days.

Thanks all, I will buy what is available since I plan on driving this thing and having readily available fluids is mandatory.

 

[khryslerkid]

This is what I use, but I really don't think WHAT you use is as important how often you change it. I'm with Dennis, every other year is cheap insurance.

I've heard the 50/50 already has filtered water in it.
There's a good thread on this somewhere.

https://www.forbbodiesonly.com/moparforum/threads/coolant-recommendations.92712/page-2

I like post #25 by PurpleBeeper

 

[Dennis H]

Zerex Original Green (by Valvoline) Amazon $16

View attachment 404833

Wow! Score. Gonna stock up a bit while still available. Thanks.

 

[Ranger16]

I've heard the 50/50 already has filtered water in it.
There's a good thread on this somewhere.

https://www.forbbodiesonly.com/moparforum/threads/coolant-recommendations.92712/page-2

I like post #25 by PurpleBeeper

Not sure what kind of water they use in the 50/50, but "filtering" won't take minerals out like softening it will. I always use the concentrate with distilled water. 50/50 is way overpriced considering you are paying for a half gallon of water.
1 gal of Prestone 50/50 = $16
1 gal of prestone concentrate ($18) & 1 gal of distilled water ($1) = 2 gal of coolant for $19.

 

[khryslerkid]

Not sure what kind of water they use in the 50/50, but "filtering" won't take minerals out like softening it will. I always use the concentrate with distilled water. 50/50 is way overpriced considering you are paying for a half gallon of water.
1 gal of Prestone 50/50 = $16
1 gal of prestone concentrate ($18) & 1 gal of distilled water ($1) = 2 gal of coolant for $19.

Good point. I was thinking about the fact of useing tap water or well water wouldn't be a good idea.

 

[Car Nut]

This is what I use, but I really don't think WHAT you use is as important how often you change it. I'm with Dennis, every other year is cheap insurance.

Not sure what kind of water they use in the 50/50, but "filtering" won't take minerals out like softening it will. I always use the concentrate with distilled water. 50/50 is way overpriced considering you are paying for a half gallon of water.
1 gal of Prestone 50/50 = $16
1 gal of prestone concentrate ($18) & 1 gal of distilled water ($1) = 2 gal of coolant for $19.

Wow, you paid almost twice what I paid!

 

[747mopar]

Good point. I was thinking about the fact of useing tap water or well water wouldn't be a good idea.

Really? That's all I've ever used.

 

[khryslerkid]

I'm wondering what this guy used? The radiator felt like 100lbs!

 

[lewtot184]

i've used the low tox stuff before. no issue with it but IIRC freezing and boiling points are different when compared to ethylene glycol at the same concentrations. i don't think an ethylene glycol tester works correctly with it either.

 

[PurpleBeeper]

Really? That's all I've ever used.

Yep.... you need distilled water or at least de-ionized water. The dissolved minerals in tap/well water is "radiator sludge/scale in the making"