XJ XJ8 / XJR ( X308 ) 1997 - 2003

coolant question

 
  #1  
Old 05-12-2019, 08:53 AM
Member
Thread Starter
Join Date: Mar 2019
Posts: 67
Received 3 Likes on 3 Posts
Default coolant question

hi guys . I want to change the coolant now as I read in the forum the Prestone Dex-Cool 50/50 coolant meets my car specs my question is should I add 10 liter of this coolant or I must add 5 liter of coolant then add 5 liter of water ? so the total is 50% coolant and 50% water ?

im really confused about this thing what should I do?

thank you .
 
  #2  
Old 05-12-2019, 09:19 AM
Veteran Member
Join Date: Apr 2015
Location: North Carolina
Posts: 1,314
Received 338 Likes on 235 Posts
Default

If you purchase the 50/50 mixture then the water is already added, as I understand it. Based on that you would just fill it from the bottles and not add any additional water.

What I do is buy the un-diluted concentrate (not 50/50) and then add equal parts pure coolant and distilled water. That seems to come out a little cheaper but I think either way is fine.
 

Last edited by harvest14; 05-12-2019 at 09:26 AM.
  #3  
Old 05-12-2019, 09:19 AM
M. Stojanovic's Avatar
Senior Member
Join Date: May 2017
Location: Kuala Lumpur
Posts: 500
Received 259 Likes on 193 Posts
Default

If you mix it 1 to 1 with water, you will have 25% coolant and 75% water.
 
  #4  
Old 05-12-2019, 09:39 AM
AJ16er's Avatar
Senior Member
Join Date: Oct 2008
Location:
Posts: 627
Received 77 Likes on 65 Posts
Default

I also use pure concentrate and mix with DISTILLED water 50/50 in a seperate clean container, shake a little, then pour into cooling system. You could pour in equal amounts of water and coolant and let it mix in the system but I am diligent when it comes to these things.
 
  #5  
Old 05-14-2019, 06:02 PM
Member
Thread Starter
Join Date: Mar 2019
Posts: 67
Received 3 Likes on 3 Posts
Default

Originally Posted by M. Stojanovic View Post
If you mix it 1 to 1 with water, you will have 25% coolant and 75% water.
what you think about water wetter and distilled water without any anti freeze
 
  #6  
Old 05-14-2019, 06:03 PM
Member
Thread Starter
Join Date: Mar 2019
Posts: 67
Received 3 Likes on 3 Posts
Default

Originally Posted by harvest14 View Post
If you purchase the 50/50 mixture then the water is already added, as I understand it. Based on that you would just fill it from the bottles and not add any additional water.

What I do is buy the un-diluted concentrate (not 50/50) and then add equal parts pure coolant and distilled water. That seems to come out a little cheaper but I think either way is fine.
thank you
 
  #7  
Old 05-14-2019, 06:06 PM
AJ16er's Avatar
Senior Member
Join Date: Oct 2008
Location:
Posts: 627
Received 77 Likes on 65 Posts
Default

Originally Posted by mobile1 View Post
what you think about water wetter and distilled water without any anti freeze
Sounds like a bad idea to be honest. Your engine is designed to run a mixture of anti-freeze and water. You might be opening yourself up to corrosion and other problems.
 
  #8  
Old 05-14-2019, 06:38 PM
Member
Thread Starter
Join Date: Mar 2019
Posts: 67
Received 3 Likes on 3 Posts
Default

Originally Posted by AJ16er View Post
Sounds like a bad idea to be honest. Your engine is designed to run a mixture of anti-freeze and water. You might be opening yourself up to corrosion and other problems.
I read good reviews about water wetter but I'm not sure if it's good for the AJ engine .

running antifreeze in hot climates is that okay?
 
  #9  
Old 05-14-2019, 06:44 PM
AJ16er's Avatar
Senior Member
Join Date: Oct 2008
Location:
Posts: 627
Received 77 Likes on 65 Posts
Default

Originally Posted by mobile1 View Post
I read good reviews about water wetter but I'm not sure if it's good for the AJ engine .

running antifreeze in hot climates is that okay?
Look in your owner's manual for the acceptable ratio range. In hot climates you can almost certainly run something like 60 water/40 antifreeze. I am sure somebody here knows the limits. Antifreeze is not just to prevent freezing but it lubricates and nourishes certain parts of the cooling system. That's why you do not want to run straight water unless it's for very temporary flushing purposes.
 

Last edited by AJ16er; 05-14-2019 at 06:46 PM.
  #10  
Old 05-14-2019, 09:14 PM
M. Stojanovic's Avatar
Senior Member
Join Date: May 2017
Location: Kuala Lumpur
Posts: 500
Received 259 Likes on 193 Posts
Default

In Malaysia, I use 1 part concentrated antifreeze with 2 parts of distilled water. This is probably still sufficient concentration of antifreeze to provide lubrication and anti corrosion. If you live in the area where the temperatures do not drop below freezing, it is better to use this concentration as the coolant mixture with less antifreeze has better heat transfer efficiency.
 
  #11  
Old 05-16-2019, 05:48 AM
Member
Thread Starter
Join Date: Mar 2019
Posts: 67
Received 3 Likes on 3 Posts
Default

Originally Posted by M. Stojanovic View Post
In Malaysia, I use 1 part concentrated antifreeze with 2 parts of distilled water. This is probably still sufficient concentration of antifreeze to provide lubrication and anti corrosion. If you live in the area where the temperatures do not drop below freezing, it is better to use this concentration as the coolant mixture with less antifreeze has better heat transfer efficiency.
I will add 2 jugs of 50/50 antifreeze and distilled water
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Bills
XK8 / XKR ( X100 )
11
05-15-2019 07:12 AM
Graham
XJ XJ8 / XJR ( X308 )
18
08-22-2018 04:14 PM
Harry Peter Rose
X-Type ( X400 )
6
02-13-2018 08:14 PM
philhef
XK8 / XKR ( X100 )
59
07-12-2014 01:49 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Quick Reply: coolant question


Advertising
Featured Sponsors
Vendor Directory

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: