Gumout GDI Q&A Answers

click here for the Gumout GDI Q&A answers

Recent Topics
My new 2015 Challenger
by casamagana
07/06/15 01:08 AM
Quick question 2013 f150
by anylettuce
07/05/15 11:39 PM
Moto E smart phone
by oilboy123
07/05/15 11:37 PM
S2000 - Will 9000 rpm and M1 0W30 AFE be ok?
by BrennanF
07/05/15 11:01 PM
New Truck buying advice
by maximus
07/05/15 10:14 PM
Would you use this or toss it?
by NoNameJoe
07/05/15 09:40 PM
How do I unsubscribe from a thread on here?
by GerGa
07/05/15 09:39 PM
Wiper Blade Recommendations?
by Tony_Mack
07/05/15 08:59 PM
DT 4th of July sale - reserved on line - disaster.
by howie2092
07/05/15 08:42 PM
Found a nice old Jeep Cherokee
by skyactiv
07/05/15 08:34 PM
Chinese stock market near crash status 2008 repeat
by GiveMeAVowel
07/05/15 08:11 PM
Is not leaking oil changing the oil?
by donba
07/05/15 08:06 PM
Newest Members
Ken41, TJ_Hayden, Jake54, mctmatt, Vincelum
54596 Registered Users
Who's Online
25 registered (Brad_C, Eric Smith, david_ES2, FFeng7, bbhero, car51, 1 invisible), 561 Guests and 100 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
54596 Members
66 Forums
233886 Topics
3756965 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Page 1 of 2 1 2 >
Topic Options
#3332221 - 04/03/14 11:56 AM What's the best way of getting proper coolant mix?
Gokhan Offline


Registered: 12/29/10
Posts: 1752
Loc: Los Angeles, California
I'll do a distilled-water flush. I have a separate radiator cock and engine-block cock, and I'll drain both. Specified system capacity is 6.6 qt per the OEM repair manual.

Do I just assume that this is the correct capacity and use 3.3 qt of concentrated antifreeze and top off the rest with distilled water to get the optimal 50/50 mix? Should I put a little more than 3.3 qt just in case? Heavy-duty heater core could result in a higher system capacity and the repair manual might not have taken into account a generously filled overflow reservoir. Of course, the overflow reservoir needs to be filled with the 50/50 mix separately as it won't mix easily by itself and I need to include the amount of the antifreeze put in there in the calculations.

Any tips are appreciated.
_________________________
1985 Toyota Corolla LE, 4A-LC engine, ~ 259,000 M
Toyota (by ExxonMobil) SN/GF-5 0W-20 Synthetic
Toyota 90915-YZZF2 filter, 90430-12031 drain gasket

Top
#3332229 - 04/03/14 12:00 PM Re: What's the best way of getting proper coolant mix? [Re: Gokhan]
ABerns Offline


Registered: 08/11/10
Posts: 422
Loc: Iowa
If it were me, I'd put in 3.3qt of antifreeze, then top off with water (as you suggested).

I don't think it gets that cold where you are to worry about it, but you can always later test your anti-freeze to see its freezing point. If too low, just add a bit more anti-freeze.

Top
#3332231 - 04/03/14 12:02 PM Re: What's the best way of getting proper coolant mix? [Re: Gokhan]
dparm Offline


Registered: 04/19/10
Posts: 12612
Loc: Chicago, IL
Getting exactly 50/50 is not a big deal. You can safely run 60/40. Seeing as how you're in LA, you'll never know the difference.
_________________________
2011.5 BMW M3 saloon ZCP
der stärkste buchstabe der welt
Castrol Edge Professional TWS 10w60 + Mahle OX 254D3

Top
#3332249 - 04/03/14 12:19 PM Re: What's the best way of getting proper coolant mix? [Re: Gokhan]
datech Offline


Registered: 01/14/14
Posts: 688
Loc: us
I guess you measure how much you drain out and somehow calculate the amount.

Top
#3332257 - 04/03/14 12:23 PM Re: What's the best way of getting proper coolant mix? [Re: Gokhan]
Gokhan Offline


Registered: 12/29/10
Posts: 1752
Loc: Los Angeles, California
Of course, I am not worried about freeze protection at all in LA, where it went down to 30 F only once in the last 20 years.

I am worried that (1) if I put less than 50% antifreeze, corrosion inhibition will be compromised, as the corrosion inhibitors will be too dilute, and (2) if I put more than 50% antifreeze, cooling efficiency will be compromised, as antifreeze is not as efficient as water in transferring heat. (3) In addition, antifreeze has very low viscosity and a very high concentration could result in leaks and coolant consumption.
_________________________
1985 Toyota Corolla LE, 4A-LC engine, ~ 259,000 M
Toyota (by ExxonMobil) SN/GF-5 0W-20 Synthetic
Toyota 90915-YZZF2 filter, 90430-12031 drain gasket

Top
#3332284 - 04/03/14 12:45 PM Re: What's the best way of getting proper coolant mix? [Re: Gokhan]
dparm Offline


Registered: 04/19/10
Posts: 12612
Loc: Chicago, IL
Like I said, being off by a bit isn't going to be a big deal. Pour in the 3.3 quarts and fill the rest with water.
_________________________
2011.5 BMW M3 saloon ZCP
der stärkste buchstabe der welt
Castrol Edge Professional TWS 10w60 + Mahle OX 254D3

Top
#3332289 - 04/03/14 12:49 PM Re: What's the best way of getting proper coolant mix? [Re: Gokhan]
mrsilv04 Offline


Registered: 12/08/06
Posts: 7046
Loc: Illinois
Originally Posted By: Gokhan
Of course, I am not worried about freeze protection at all in LA, where it went down to 30 F only once in the last 20 years.

I am worried that (1) if I put less than 50% antifreeze, corrosion inhibition will be compromised, as the corrosion inhibitors will be too dilute, and (2) if I put more than 50% antifreeze, cooling efficiency will be compromised, as antifreeze is not as efficient as water in transferring heat. (3) In addition, antifreeze has very low viscosity and a very high concentration could result in leaks and coolant consumption.


A higher concentration of coolant has a higher boiling point... better than lower. Not sure where you got the opposite.

Dump in 4 quarts of coolant, and top off with water. You'll be fine. You're over-analyzing this big time.


_________________________
Whatever you do... do NOT speed through the town of Gauley Bridge, WV.

Top
#3332307 - 04/03/14 01:11 PM Re: What's the best way of getting proper coolant mix? [Re: mrsilv04]
Gokhan Offline


Registered: 12/29/10
Posts: 1752
Loc: Los Angeles, California
Originally Posted By: mrsilv04
A higher concentration of coolant has a higher boiling point... better than lower. Not sure where you got the opposite.

Of course, it has a higher boiling point and lower freezing point.

I am talking about the cooling efficiency -- how much a coolant can extract heat from the engine. Water is more efficient than antifreeze in extracting heat; so, in principle, your engine would run cooler with 100% distilled water than with an antifreeze mix. Of course, there would be little corrosion protection.
_________________________
1985 Toyota Corolla LE, 4A-LC engine, ~ 259,000 M
Toyota (by ExxonMobil) SN/GF-5 0W-20 Synthetic
Toyota 90915-YZZF2 filter, 90430-12031 drain gasket

Top
#3332380 - 04/03/14 02:22 PM Re: What's the best way of getting proper coolant mix? [Re: Gokhan]
sayjac Offline


Registered: 10/13/08
Posts: 9041
Loc: The Old North State
~3.3 qts. AF in system, top with distilled to full. Make a 50/50 mix AF/distilled for or in recovery tank. Good to go. Close enough.

Top
#3332383 - 04/03/14 02:26 PM Re: What's the best way of getting proper coolant mix? [Re: Gokhan]
jrustles Offline


Registered: 02/24/13
Posts: 2035
Loc: Ontario, Canada
If you use distilled exclusively in your system, then don't get too hung up on corrosion protection. In your climate, I'd be fine with 60/40 h2o/glycol (and my personal preference, a surfactant based wetting agent). I premix the coolant with distilled before I pour it in, and adjust later for any flushwater that may have been used and remained in the system, if it's any consequential amount.
_________________________
"No matter how paranoid or conspiracy-minded you are, what the government is actually doing is worse than you imagine" W.Blum

Top
#3332447 - 04/03/14 03:17 PM Re: What's the best way of getting proper coolant mix? [Re: Gokhan]
mrsilv04 Offline


Registered: 12/08/06
Posts: 7046
Loc: Illinois
Originally Posted By: Gokhan
Originally Posted By: mrsilv04
A higher concentration of coolant has a higher boiling point... better than lower. Not sure where you got the opposite.

Of course, it has a higher boiling point and lower freezing point.

I am talking about the cooling efficiency -- how much a coolant can extract heat from the engine. Water is more efficient than antifreeze in extracting heat; so, in principle, your engine would run cooler with 100% distilled water than with an antifreeze mix. Of course, there would be little corrosion protection.


I give up. Go buy a new car. Problem solved.

horse
_________________________
Whatever you do... do NOT speed through the town of Gauley Bridge, WV.

Top
#3332476 - 04/03/14 03:58 PM Re: What's the best way of getting proper coolant mix? [Re: Gokhan]
Wolf359 Offline


Registered: 04/27/12
Posts: 860
Loc: MA
Originally Posted By: Gokhan
Originally Posted By: mrsilv04
A higher concentration of coolant has a higher boiling point... better than lower. Not sure where you got the opposite.

Of course, it has a higher boiling point and lower freezing point.

I am talking about the cooling efficiency -- how much a coolant can extract heat from the engine. Water is more efficient than antifreeze in extracting heat; so, in principle, your engine would run cooler with 100% distilled water than with an antifreeze mix. Of course, there would be little corrosion protection.


As someone else said, you are over analyzing things. Your car has fans, if it gets too hot, the fans will kick it. It's a moot point. You might save 2 cents in gas due to use less electricity to power the fans. Life's too short, just fill with water and move on. If you wanted to go nuts, make sure you use distilled water, but that would affect your savings from a going with a more efficient mix.

Top
#3332514 - 04/03/14 04:30 PM Re: What's the best way of getting proper coolant mix? [Re: Gokhan]
901Memphis Offline


Registered: 08/14/10
Posts: 8067
Loc: Northern Kentucky
Guy at work insisted on filling his pt cruiser with straight antifreeze and wondered why it overheated in the winter. Now he has castor oil in there and said it doesn't over heat anymore.
_________________________
2002 Buick Century 111k - QS Defy 5w30/Fram TG 3387A
Filter mag/Cooper CS5 GT/Wearever Platinum Ceramics
Triple Edge 4T65E/Maxlife Dex-Merc

Top
#3332544 - 04/03/14 05:07 PM Re: What's the best way of getting proper coolant mix? [Re: Gokhan]
thrace Offline


Registered: 08/31/02
Posts: 343
Loc: USA
Originally Posted By: Gokhan
I'll do a distilled-water flush. I have a separate radiator cock and engine-block cock, and I'll drain both. Specified system capacity is 6.6 qt per the OEM repair manual.

Do I just assume that this is the correct capacity and use 3.3 qt of concentrated antifreeze and top off the rest with distilled water to get the optimal 50/50 mix? Should I put a little more than 3.3 qt just in case?
If you can drain out more than 50% of cooling system volume, your plan should work.
However have found on some cars, cannot drain out half of the stated total coolant system volume. If true, cannot put in full strength antifreeze in volume of 50% of stated total coolant volume and expect 50/50 mix after water flush. In that case, if coolant not too dirty or acidic, consider just drain and measure volume and fill with home brew or store bought 50/50 mix and repeat at or more often than manufacturer's recommendation.

Top
#3332547 - 04/03/14 05:11 PM Re: What's the best way of getting proper coolant mix? [Re: Gokhan]
SHOZ Offline


Registered: 06/28/03
Posts: 2554
Loc: Illinois
I flush mine with distilled. Then top off with 70/30. It usually comes out at 50/50.

Top
Page 1 of 2 1 2 >