1994 LT1 - coolant recommendation?
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
Ayuh.
I know how stuff works though (like water pumps that don't need lube). If what works for you, works...that's great, keep doing what you're doing, if it treats your soul. But be careful giving that advice to others seeking the facts. You shouldn't have had to make that trip to hell with your car, you don't need to lube your water pump, and the stock cooling system in a C4, when properly maintained is better than good enough under most any condition any of us will encounter.
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I know how stuff works though (like water pumps that don't need lube). If what works for you, works...that's great, keep doing what you're doing, if it treats your soul. But be careful giving that advice to others seeking the facts. You shouldn't have had to make that trip to hell with your car, you don't need to lube your water pump, and the stock cooling system in a C4, when properly maintained is better than good enough under most any condition any of us will encounter.
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Last edited by Tom400CFI; Aug 2, 2017 at 04:11 PM.
Instructor
Joined: Aug 2016
Posts: 240
Likes: 51
From: Putnam County NY
I have run ELC in all my personal vehicles....and all of my fleet vehicles too, for the past 20 + years. How well does it work? See for yourself....
Here is the radiator on our '05 CTS-V. Car was a "young" 10 years old, ~130k miles. Only had Dex cool in it when I pulled the radiator due to leaking tank to core o-ring.
Attachment 48135211
Here is the radiator on my 'Vette after 23 years, 155k miles...the side tank cracked, so I popped it off to have a look. Ran Dexcool in it. How's it look?
Attachment 48135212
Attachment 48135213
Here is the radiator from my '96 Silverado @ 17 years old and 240,000 miles on it. I hit a cow, munched the original radiator. Pulled the side tank to have a look. Only had dexcool in it. How's it look?
Attachment 48135214
As for running at 220, that may not be "too hot"; the cooling fans don't even turn on until about 230*F. Under what conditions does it run 220*?
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Here is the radiator on our '05 CTS-V. Car was a "young" 10 years old, ~130k miles. Only had Dex cool in it when I pulled the radiator due to leaking tank to core o-ring.
Attachment 48135211
Here is the radiator on my 'Vette after 23 years, 155k miles...the side tank cracked, so I popped it off to have a look. Ran Dexcool in it. How's it look?
Attachment 48135212
Attachment 48135213
Here is the radiator from my '96 Silverado @ 17 years old and 240,000 miles on it. I hit a cow, munched the original radiator. Pulled the side tank to have a look. Only had dexcool in it. How's it look?
Attachment 48135214
As for running at 220, that may not be "too hot"; the cooling fans don't even turn on until about 230*F. Under what conditions does it run 220*?
.
I run Dex on both of my 95's and have never had an issue.
