Engine overhaul any special coolant dexcool or ??

[EvanD]

I am prepping for my head cam swap. Lifters soaking in oil final parts accumulating. Heads cam swap. The entire coolant system will be emptied. What is the go to coolant?? Refill with plain dexcool or walmart super tech. Which has worked perfectly for me in a number of applications or something better on the market???

03 silverado SS lower temp therm 160 and full bolt on modded


Please no basic green recommendations

The top choices
dex cool

supertech

???? what do you guys recommend and why??

 

[Roadkingnc]

Use what has worked for you in the past

 

[EvanD]

So much help. Let's just end it here.
http://www.urbandictionary.com/define.php?term=thread killer

 

[simple_gifts]

Quote:

???? what do you guys recommend and why??


What: What you used that worked in the past.

Why: Because it worked.

 

[clinebarger]

I run Dexcool in both my Chevy's, My Duramax is a little rougher on coolant with a EGR cooler. I drain & refill every 2 years.

 

[artificialist]

Read the package of Supertech, and if you find 2-EH or 2-Ethyl-Hexanoate, it matches Dexcool. Many multi-vehicle coolants are really Dexcool clones.

 

[sciphi]

Super-Tech will do the same job as Dex-Cool but without the higher price tag of the name brand.

IIRC the Super-Tech is a Dex-clone, so it will be compatible with the original bits left in the system.

 

[bdcardinal]

Ever consider the Evans Waterless coolant? I have been mulling this idea over on my 95 Mustang when the engine goes back together.

 

[EvanD]

I really like the look of the evans. I think I would use it after a full rebuild when everything is dry. I don't see how you can eliminate all the water. I think 3% is the max you can have.

 

[901Memphis]

Zerex G05 is what i have in my Buick. It's low silicate and longer lasting than conventional green. It's nearly universal if you flush everything with water first.

 

[Trav]

I use John Deere Coolguard/Coolguard II only these days.
Its made to prevent liner cavitation and work with cooled EGR systems in diesels but is also recommended for gas engines.
The only drawback is you must get this from a JD dealer but IMO its well worth it.

This stuff is proven over many years to be superior, the wear meals are lower and you can use test strips to check its condition not just its freezing/boiling point.

https://jdparts.deere.com/partsmkt/document/english/featbene/CoolGardII.pdf

A good thread on this coolant.

https://bobistheoilguy.com/forums/ubbthreads.php/topics/1696012/1

 

[Kira]

Hello, I just went back and gave the quickest "once over" to the J-D sheet and the thread. Great work done by all back in 2010 on the subject.

Am I correct in referring to the revised J-D product as "universal"? It seems so. Kira

 

[EyesofThunder]

I tried avoid all the bad press and used Dexcool in my Buick, and when cold the Dexcool was like applesauce. Was ok when warm, but like applesauce cold.

I did suspect I had an lower intake leak, but couldn't prove it till I replaced it. It was, but why Dexcool so strange. I won't use it again.

I have heard the Toyota Red and Rotella Red are both very good. Can't say I have ever used them though unless the car came with it.

 

[Trav]

Originally Posted By: Kira
Hello, I just went back and gave the quickest "once over" to the J-D sheet and the thread. Great work done by all back in 2010 on the subject.

Am I correct in referring to the revised J-D product as "universal"? It seems so. Kira


Its not an all makes and models stuff but when the entire system is flushed it seems to be as universal as GO5 is (it is not GO5 or G48).
I have had it in 4 GM, 2 Infiniti and a Kubota 3 cyl diesel traktor for over 6 years and its still testing good and looks clean.
The VW and Honda are a little too soon to say but its looking good. Material compatibility is not an issue.

Only mix it with CG1 or CG 2 that is already in the system without a complete flush.

 

[dailydriver]

Originally Posted By: EvanD
I really like the look of the evans. I think I would use it after a full rebuild when everything is dry. I don't see how you can eliminate all the water. I think 3% is the max you can have.


Also, depending on where you are located in this country, I'm not sure I would trust even their 'all season'/street coolant as far as low ambient temp/deep winter use goes.
South Tejas, NO PROBLEM!!

 

[Silverado12]

Dexcool all the way!

 

[440Magnum]

If DexCool works, then go back with it. No reason not to.

Personally I like G-05 because of the better multi-metal protection, but if your engine DOESN'T NEED IT, then no worries.

As for Evans, I have a friend who's used it in old engines with no problems. Residual water in the system is self-removing, it boils away since you run the Evans essentially un-pressurized. You do need to watch the coolant level and keep topping up with Evans as the water goes away. And you do need to make sure its just water, and not residual DexCool. Popping the block drain plugs and flushing is recommended.