Dex-cool is it any good???????
09-21-2010, 12:34 PM
#11
So, I've never done a "true flush", but a partial poor man's flush.
Everybody is going to Dexcool. Ford is next. Its good stuff if you maintain your cooling system.
There were problems with poor quality gaskets in V6s that deteriated with Dexcool. There was a class action lawsuit on this. NO v8 trucks were included in this. Anyway no coolant goes through the 4.8/5.3/6 liter intakes.
Dex-Cool IS one of the most friendly coolants towards metals and corrosion.....
Dexcool probably has better performance on aluminum, steel, and iron and a longer life than most any other coolant. It has no silicates or phosphates to form solid abrasives (I don't think this is a big issue really) and is pretty tolerate of tap water that's not too low quality. It's pretty cheap and easy to find. Plus if your car has Dexcool already it's good to stay with the same formula if you can especially during the warranty period.
My wife and I have nearly 3/4 of a milliom miles on Dexcool without any issues what so ever.
But it don't mix with the green coolant. That will turn it to sludge.
There were problems with poor quality gaskets in V6s that deteriated with Dexcool. There was a class action lawsuit on this. NO v8 trucks were included in this. Anyway no coolant goes through the 4.8/5.3/6 liter intakes.
Dex-Cool IS one of the most friendly coolants towards metals and corrosion.....
Dexcool probably has better performance on aluminum, steel, and iron and a longer life than most any other coolant. It has no silicates or phosphates to form solid abrasives (I don't think this is a big issue really) and is pretty tolerate of tap water that's not too low quality. It's pretty cheap and easy to find. Plus if your car has Dexcool already it's good to stay with the same formula if you can especially during the warranty period.
My wife and I have nearly 3/4 of a milliom miles on Dexcool without any issues what so ever.
But it don't mix with the green coolant. That will turn it to sludge.
09-22-2010, 09:38 PM
#12
TECH Regular
Thread Starter
still some left
Everybody is going to Dexcool. Ford is next. Its good stuff if you maintain your cooling system.
There were problems with poor quality gaskets in V6s that deteriated with Dexcool. There was a class action lawsuit on this. NO v8 trucks were included in this. Anyway no coolant goes through the 4.8/5.3/6 liter intakes.
Dex-Cool IS one of the most friendly coolants towards metals and corrosion.....
Dexcool probably has better performance on aluminum, steel, and iron and a longer life than most any other coolant. It has no silicates or phosphates to form solid abrasives (I don't think this is a big issue really) and is pretty tolerate of tap water that's not too low quality. It's pretty cheap and easy to find. Plus if your car has Dexcool already it's good to stay with the same formula if you can especially during the warranty period.
My wife and I have nearly 3/4 of a million miles on Dexcool without any issues what so ever.
But it don't mix with the green coolant. That will turn it to sludge.
There were problems with poor quality gaskets in V6s that deteriated with Dexcool. There was a class action lawsuit on this. NO v8 trucks were included in this. Anyway no coolant goes through the 4.8/5.3/6 liter intakes.
Dex-Cool IS one of the most friendly coolants towards metals and corrosion.....
Dexcool probably has better performance on aluminum, steel, and iron and a longer life than most any other coolant. It has no silicates or phosphates to form solid abrasives (I don't think this is a big issue really) and is pretty tolerate of tap water that's not too low quality. It's pretty cheap and easy to find. Plus if your car has Dexcool already it's good to stay with the same formula if you can especially during the warranty period.
My wife and I have nearly 3/4 of a million miles on Dexcool without any issues what so ever.
But it don't mix with the green coolant. That will turn it to sludge.
09-22-2010, 10:24 PM
#13
TECH Resident
Join Date: Sep 2004
Location: Ennis, Texas
Posts: 941
Likes: 0
Received 0 Likes
on
0 Posts
Ive got almost 94,000 miles right now on factory dex-cool. I have seen a couple of Vortec 5.7L engines near 300,000 miles and they never had anything but Dex-cool so it cant be too bad. I just wouldn't mix the different types.
09-22-2010, 11:54 PM
#14
I know that the last time that I drank a gallon of DexCool I only caught half of the buzz that I used to get when I drank a gallon of the old green Prestone, so it has to be environmentally sound 
btw, I've noticed that dlstewart01 knows his **** when it comes to the fluids that run through your engine...if he says it's OK, I feel even better about running it in my 99 truck for the last 11 years, and my 96 Blazer that now has new intake gaskets
btw, I've noticed that dlstewart01 knows his **** when it comes to the fluids that run through your engine...if he says it's OK, I feel even better about running it in my 99 truck for the last 11 years, and my 96 Blazer that now has new intake gaskets
09-24-2010, 07:24 AM
#15
I know that the last time that I drank a gallon of DexCool I only caught half of the buzz that I used to get when I drank a gallon of the old green Prestone, so it has to be environmentally sound
btw, I've noticed that dlstewart01 knows his **** when it comes to the fluids that run through your engine...if he says it's OK, I feel even better about running it in my 99 truck for the last 11 years, and my 96 Blazer that now has new intake gaskets
btw, I've noticed that dlstewart01 knows his **** when it comes to the fluids that run through your engine...if he says it's OK, I feel even better about running it in my 99 truck for the last 11 years, and my 96 Blazer that now has new intake gaskets
Agreed, I always learn from him.
09-24-2010, 03:24 PM
#17
TECH Fanatic
Join Date: Sep 2009
Location: PHX AZ
Posts: 1,818
Likes: 0
Received 0 Likes
on
0 Posts
I know that the last time that I drank a gallon of DexCool I only caught half of the buzz that I used to get when I drank a gallon of the old green Prestone, so it has to be environmentally sound
btw, I've noticed that dlstewart01 knows his **** when it comes to the fluids that run through your engine...if he says it's OK, I feel even better about running it in my 99 truck for the last 11 years, and my 96 Blazer that now has new intake gaskets
btw, I've noticed that dlstewart01 knows his **** when it comes to the fluids that run through your engine...if he says it's OK, I feel even better about running it in my 99 truck for the last 11 years, and my 96 Blazer that now has new intake gaskets
X2! dlstewart01 help me out by telling me i should not have used the gm diff additive when i changed my diff fluid. He said G80 rear end only needs 75-w90 gear oil -no additive- in the trucks.
09-24-2010, 05:34 PM
#18
I have 155,000 on the original Dexcool, still looks great and have never had a leak. I put in some royal purple "purple ice" about 100,000 miles ago. Dexcool has a bad rep and people continue to spread that its no good. I will be changing mine soon, also time for another trans filter and fluid change.
Thread
Thread Starter
Forum
Replies
Last Post
Raggedz71
TOWING & OFFROAD PERFORMANCE
3
07-29-2016 10:20 AM
