3800 coolant system

[imported_Ron Vogel]

I'm looking to order the NPG+ coolant from Evans. I have to completely flush out all the coolant/water from my system to run this stuff. How many gallons does a "dry" cooling system take to fill? TIA

Click to read more...

 

[CoolGTX]

sorry, im to lazy to look, but its in your manual

 

[imported_Ron Vogel]

never got one, got the car used. Someone posted over on club gp, look like I'll need 3 jugs. Uhhg, at $25 a pop...crap better be pure gold!

 

[Kyle]

dont use dex cool, i've ben told by a few mechanics that that stuff causes water pumps to corrode.

 

[Fish]

The guy that changed my oil pulled some sludge outta my radiator. Dex cool is the shit.

 

[fastcash]

Originally posted by Kyle@Dec 21 2004, 12:15 AM
dont use dex cool, i've ben told by a few mechanics that that stuff causes water pumps to corrode.

[snapback]64873[/snapback]​

it does. mine is. but it's still better in the long run. add some water wetter and watch your temps drop from 192 to 178 in secs.

 

[rjaz gtp]

Ron-

I busted out my '97 manual to tell you what is says...

For the 3800 SC it reqires 10.2 quarts (9.63L) when flushing your system including reservoir.

The manual states also for Engine Coolant: 50/50 mixture of clean water (preferably distilled) and use only Dex-Cool

Good luck...

-Rich

 

[imported_Ron Vogel]

Originally posted by rjaz gtp@Dec 21 2004, 02:48 PM
Ron-

I busted out my '97 manual to tell you what is says...

For the 3800 SC it reqires 10.2 quarts (9.63L) when flushing your system including reservoir.

The manual states also for Engine Coolant: 50/50 mixture of clean water (preferably distilled) and use only Dex-Cool

Good luck...

-Rich

[snapback]64916[/snapback]​

Thanks, just what was looking for.
The Evan's stuff is waterless, so I need to buy enough to fill the whole system. It last forever, and raises the boiling point to some insane # like 350 degrees F. One of the magazines did some testing on the dyno with it, and was able to pull over 25hp in the car from just changing the coolant. Go to the Evans website, they explain it well. Looks to be a pretty good product, they've been around for awhile.

 

[sgtp]

does removing the knock sensor and opening up the valve on the radiator completely drain the coolant system, or is there more to it? like using compressed air to blow it all out?

 

[imported_Ron Vogel]

Originally posted by sgtp@Dec 22 2004, 03:47 PM
does removing the knock sensor and opening up the valve on the radiator completely drain the coolant system, or is there more to it?  like using compressed air to blow it all out?

[snapback]65088[/snapback]​

From what I understand, removing the knock sensor will do it. I have a feeling to completely flush my system the right way it will take an entire day.
1. drain coolant
2. flush out balance of coolant with garden hose
3. top with water and add coolant flush additive
4. repeat
5. flush out system with garden hose
6. fill with water, and run
7. drain
8. repeat 5 & 6
9. pull knock sensor, leave sit after blasting it with air for a few hours
10. fill system with NPG