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View Full Version : Preferred Coolant For Iron Engines With Aluminum Intake & Radiator



GoDadGo
11-17-2018, 01:44 PM
What coolant do you guys prefer for your "Iron Engines" sporting aluminum intakes and radiators?

There are so many coolant types out there that they've got my head spinning.
My climate is mild so the car will never be winterized & stored.
Living in the Deep South has some advantages.
Hurricane Season Isn't One Of Them!
Thanks-N-Advance!

KenWilkinson
11-17-2018, 01:55 PM
I'm going to try waterless

jrcuz
11-17-2018, 03:22 PM
I have waterless in mine and so far so good. I had to drain it once to replace the oil pan and water pump gasket but I used a clean pan and put it back in. If you've ever had water in your system there is a flushing chemical you have to use first which costs as much per gallon as the coolant. Once it's in the coolant lasts basically forever.
JR

NAZ
11-17-2018, 03:53 PM
For my street cars I use whatever the OEM recommends -- these are usually longer lasting types (none last forever). However, for my race car I use the tried and true 50/50 premix (I use Peak but choose your brand) ethylene glycol. It's relatively cheap and easy to get rid of. I also have to pull my engine every two-years for SFI certs so the coolant will never stay in there long enough to gel up.

cgundermann
11-18-2018, 09:59 AM
I also use an anode plug that I replace yearly as it’s eaten away to deal with the galvanic effect of the dissimilar metals. Got it from Summit Racing and you just need a spare port (mine is in the lower intake). I also add VR-12 a “vitamin” additive for your antifreeze. It has slightly lowered my operating tempature...

Chris

GoDadGo
11-18-2018, 06:24 PM
I went with the Dexacool (Prestone Brand) coolant.

I had that stuff in my old 1995 Corvette that I recently sold to a friend of mine so that he could get back into the Car Hobby.

https://youtu.be/svZX2BMSDEs

It is also in Baby Go-Dad's 2000 Camaro.

https://youtu.be/A5WUZgl6N5Q

Since those cars have iron blocks, with aluminum radiators I figured why not run that stuff since I've already used it.

Thanks For The Input Gang!