1976 Cadday Deville - Coolant fluid
- Thread starter momo
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A flush would be a good idea. Replace with the lowest cost standard green coolant. 29-3019-4 if you shop at Canadian Tire.
"Red" and "Green" mean nothing.
DO NOT use DexCool. That also, by implication, means don't use Prestone All Makes/All Models since its a DexCool clone. My choice would be a conventional inorganic technology coolant (most parts-store "house brands" still come in that flavor- its the old formula that was usually some shade of green.)
Another option that is generally considered pretty safe for old cooling systems is G-05. Its got silicates to protect multimple metals quickly, and does not use 2EHA like DexCool.
Some people also recommend Peak Global Lifetime, but I've never personally used it. I have used G-05 in 3 older vehicles with good results.
DO NOT use DexCool. That also, by implication, means don't use Prestone All Makes/All Models since its a DexCool clone. My choice would be a conventional inorganic technology coolant (most parts-store "house brands" still come in that flavor- its the old formula that was usually some shade of green.)
Another option that is generally considered pretty safe for old cooling systems is G-05. Its got silicates to protect multimple metals quickly, and does not use 2EHA like DexCool.
Some people also recommend Peak Global Lifetime, but I've never personally used it. I have used G-05 in 3 older vehicles with good results.
A flush would be a good idea. I would use standard green for it. Not the all makes stuff. Zerex still makes old school green coolant.
DO NOT USE A LONG LIFE COOLANT IN THAT CAR!!!! NO Prestone ALL MAKES ALL MODELS,Dexcool etc. Must only use a Silicated old school green coolant. The long life coolants will eat the solder out of the heater core and Radiator.
In fact My warranty is voided if you use a LL coolant in a Copper Rad or heater we built.
In fact My warranty is voided if you use a LL coolant in a Copper Rad or heater we built.
So I have to avoid Dexcool stuff, and try to get either Zerex or AcDelco coolant.
So I am wondering if it needs to have the flush fluid like this one?
http://www.amazon.com/Prestone-AS105-Rad...B6TC65T299HMDZ2
So I am wondering if it needs to have the flush fluid like this one?
http://www.amazon.com/Prestone-AS105-Rad...B6TC65T299HMDZ2
Zerex makes a plain jane green old time fluid. U can get it by the case on amazon. Cut and paste this in at Amazon. Zerex ZXRU1-6PK Original Green Ready-to-Use Antifreeze/Coolant - 1 Gallon, (Case of 6)
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Originally Posted By: momo
So I have to avoid Dexcool stuff, and try to get either Zerex or AcDelco coolant.
Will AC Delco still have a classic green here? Check the product named Celsius, or better yet, check for Texaco or Havoline original green at Partsource or another parts store.
So I have to avoid Dexcool stuff, and try to get either Zerex or AcDelco coolant.
Will AC Delco still have a classic green here? Check the product named Celsius, or better yet, check for Texaco or Havoline original green at Partsource or another parts store.
Originally Posted By: momo
By the way, can I also use Toyota coolant long life premix 50/50 since I have few of them?
Toyota Red and Toyota Pink are both non-silicate coolants, so they will not protect your cooling system properly.
You have to find the coolant that actually is green, and states that it has silicates. Green antifreeze made for Japanese cars is non-silicate, so don't use that either.
By the way, can I also use Toyota coolant long life premix 50/50 since I have few of them?
Toyota Red and Toyota Pink are both non-silicate coolants, so they will not protect your cooling system properly.
You have to find the coolant that actually is green, and states that it has silicates. Green antifreeze made for Japanese cars is non-silicate, so don't use that either.
Originally Posted By: Garak
Originally Posted By: momo
So I have to avoid Dexcool stuff, and try to get either Zerex or AcDelco coolant.
Will AC Delco still have a classic green here? Check the product named Celsius, or better yet, check for Texaco or Havoline original green at Partsource or another parts store.
It should still be available there. I don't have the Canadian part #, but the US part # is 12378560 for a gallon. GM refers to it as "traditional coolant" in the catalog, and as "antifreeze/coolant - ethelyene glycol base" on the bottle itself. If in doubt, it will say on the back label "DO NOT MIX WITH DEXCOOL" or something to that effect.
I keep at least a case in stock...we still use it often enough to justify keeping it on hand.
Originally Posted By: momo
So I have to avoid Dexcool stuff, and try to get either Zerex or AcDelco coolant.
Will AC Delco still have a classic green here? Check the product named Celsius, or better yet, check for Texaco or Havoline original green at Partsource or another parts store.
It should still be available there. I don't have the Canadian part #, but the US part # is 12378560 for a gallon. GM refers to it as "traditional coolant" in the catalog, and as "antifreeze/coolant - ethelyene glycol base" on the bottle itself. If in doubt, it will say on the back label "DO NOT MIX WITH DEXCOOL" or something to that effect.
I keep at least a case in stock...we still use it often enough to justify keeping it on hand.
Sounds good. I wouldn't be surprised if GM hung onto it up here, but one never knows.
Rotella ELC is an OAT that has plenty of molybdate to protect your brass, lead, and copper, with no silicate or 2HEA. I have been using it in older cars with no issues. Higher service life and oxidation state than green.
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