4.0l XJ overheating? Start here - the basics! - Page 3 - AUSJEEPOFFROAD.COM Jeep News Australia and New Zealand


Go Back   AUSJEEPOFFROAD.COM Jeep News Australia and New Zealand > JEEP GARAGE > XJ / MJ Cherokee


Portal Register Forums Trading Your Jeep New Garage Mark All Read

Post New Thread  Reply
 
Thread Tools Search this Thread
  #19  
Old 03-03-2011
XJeepers's Avatar
XJeepers  XJeepers is offline
WELDING RODS FOR STEERING
 
Join Date: Apr 2010
Posts: 1,251
What Jeep do I drive?: JK
Likes: 267
Liked 217 Times in 122 Posts
Default

Quote:
Originally Posted by murray View Post
yes that is relevant in regards to % of coolant mix but as i said what the ****** has a rego plate got to do with cooling problems unless it blocks air flow
Ok, I thought you were having a go directly at me, my bad (still a newbie myself, to all things forum). I think the number plate post was just a miss post though... I think...

Quote:
Originally Posted by carvesdodo View Post
The ratio numbers have no real reference to the anti-corrosive additives, coz thats measured in teaspoons/tablespoons/whatever .... per litre of mix .... regardless what the mix ratio is.
Good point.

Quote:
Originally Posted by Rodgebone View Post
as for the 44% figure - that is straight out of the FSM
Got ya. Only reason I asked was not to pick the crap out of it, more that I have just flushed and replaced my coolant (30% Ethlene glycol). I was aware of the 50/50 and I guess it makes sense that the FSM would recommend this as you would top it up with distilled water (you would hope) during the coolant life, therefore watering down the mix

Quote:
Originally Posted by Rodgebone View Post
i suppose too it should be clarified what is 30% and what is 70% - the water or the coolant? lets make that distinction for those people who may not know (remember, this is an info page).
Good point, as per carves
Quote:
Originally Posted by carvesdodo View Post
Generally the mix is referred to as eth-gly/water .... so 30/70 is 30% eth-gly.
  #20  
Old 03-03-2011
Rodgebone's Avatar
Rodgebone  Rodgebone is offline
AJOR Gold
 
Join Date: May 2006
Location: Ocean Reef, Western Australia
Age: 54
Posts: 3,852
What Jeep do I drive?: XJ
Likes: 2
Liked 30 Times in 20 Posts
Default

i am coming to a conclusion from the replys already regarding the coolant and mix thing....ive always bought concentrate coolant and mixed it 50/50 with distilled water. my theory was why pay extra to some coolant company for their overpriced distilled water (or whatever form of water they use). but now after reading the comments about additives and ratios im thinking maybe this is a bad idea especially when it comes to the additives being watered down. i spoze one could just add some extra to the 50/50 but im thinking the cost is going to end up being the same. so why not buy good quality pre-mix with everything already at the correct ratios? ill be looking closely at the pre-mix brands next time i make a parts run. maybe Nulon, Castrol or Prestone have just what the dr ordered....i told you i would turn if i had a good reason!
__________________
there's Only One
  #21  
Old 03-03-2011
XJeepers's Avatar
XJeepers  XJeepers is offline
WELDING RODS FOR STEERING
 
Join Date: Apr 2010
Posts: 1,251
What Jeep do I drive?: JK
Likes: 267
Liked 217 Times in 122 Posts
Default

Quote:
Originally Posted by Rodgebone View Post
i am coming to a conclusion from the replys already regarding the coolant and mix thing....ive always bought concentrate coolant and mixed it 50/50 with distilled water. my theory was why pay extra to some coolant company for their overpriced distilled water (or whatever form of water they use). but now after reading the comments about additives and ratios im thinking maybe this is a bad idea especially when it comes to the additives being watered down. i spoze one could just add some extra to the 50/50 but im thinking the cost is going to end up being the same. so why not buy good quality pre-mix with everything already at the correct ratios? ill be looking closely at the pre-mix brands next time i make a parts run. maybe Nulon, Castrol or Prestone have just what the dr ordered....i told you i would turn if i had a good reason!
Personally I have always used concentrate for the same reason. This time it was the castrol, but I have used tectaloy and others for my other cars without any complaints.
  #22  
Old 03-03-2011
Rodgebone's Avatar
Rodgebone  Rodgebone is offline
AJOR Gold
 
Join Date: May 2006
Location: Ocean Reef, Western Australia
Age: 54
Posts: 3,852
What Jeep do I drive?: XJ
Likes: 2
Liked 30 Times in 20 Posts
Default

actually in hindsight i'm being premature about switching to pre-mix. if its formulated as concentrate then it should have the appropriate amount of additives to mix with distilled water to 50/50 or 30/70 or whatever the label calls for. so im gonna flip flop back
__________________
there's Only One
Sponsored Posts
  #23  
Old 03-03-2011
SJCXJeep's Avatar
SJCXJeep  SJCXJeep is offline
CrawlerStar
 
Join Date: Aug 2010
Location: Gold Coast
Posts: 302
What Jeep do I drive?: XJ
Likes: 0
Liked 0 Times in 0 Posts
Default

Quote:
Originally Posted by XJeepers View Post
Personally I have always used concentrate for the same reason. This time it was the castrol, but I have used tectaloy and others for my other cars without any complaints.
I too use concentrate, rather than pre mix... Usally its Nulon or Tectaloy, as you mention... cheaper that way, plus was always concerned on how good the pre mix product is... ?
  #24  
Old 03-03-2011
carvesdodo  carvesdodo is offline
No Winching
 
Join Date: Jan 2008
Location: N.S.W.
Posts: 2,960
What Jeep do I drive?: XJ
Likes: 19
Liked 71 Times in 41 Posts
Default

Quote:
Originally Posted by Rodgebone View Post
actually in hindsight i'm being premature about switching to pre-mix. if its formulated as concentrate then it should have the appropriate amount of additives to mix with distilled water to 50/50 or 30/70 or whatever the label calls for. so im gonna flip flop back
Good being able to thrash stuff out on an open forum huh

Personally I dont think theres a great deal of difference in the additive amounts in either a bottle of 50/50 concentrate or a 30/70 one but users should be aware there is.

Only real reason I use a premix is so that I can go anywhere and still be able to find the cheap, commonly available, one I use .... at almost any town with a halfarsed autoshop .... and not have to turn hicksville upside down hoping to find that "special" brand and a coupla bottles of distilled water.
__________________
I hate watching simplicity and reliability being ruined by bureaucracy and technology.
Sponsored Posts
  #25  
Old 03-03-2011
josh9465's Avatar
josh9465  josh9465 is offline
Full Flexer
 
Join Date: Apr 2007
Location: Perth, SOR
Age: 43
Posts: 908
What Jeep do I drive?: TJ
Likes: 34
Liked 13 Times in 11 Posts
Default

so in Aust where the temps are warmer, its better to use a 30/70 coolant? i think i get that.

i gather water is better at absorbing heat than pure 100% eth-glycol???

so what coolant brands at 30% do you recommend to use in the 4.0L carves?

cheap and nasty, expensive or mediocre?


Quote:
Originally Posted by carvesdodo View Post
Good point Rodge .....

Generally the mix is referred to as eth-gly/water .... so 30/70 is 30% eth-gly.

But it only needs to be written or referred to once ... in the reverse - and its all out the window.

The ratio numbers have no real reference to the anti-corrosive additives, coz thats measured in teaspoons/tablespoons/whatever .... per litre of mix .... regardless what the mix ratio is.

Which coolant grade to use ... and even which type is a drivers choice depending on what they know or whether they are warranty bound.

There is 4 sources of anti-freeze mix info ... Ooooops ... 5 sources ... thanks Nakkas ...

First is all the knowledge, beliefs, experience, opinions, facts AND fairy tales on car forums,
Second is the "our coolant is special" drivel from the car manufacturers,
Third is what the "coolant" manufacturers will tell you before getting to the point of upsetting the carmakers,
Fourthly there is the coolant scientific community ... who dont seem to give a toss who they upset when quoting facts and figures ... Coz they are always right ...
And lastly there is all those unchallangeable private websites with all their right AND wrong info.

I like to jumble it all together for a balanced view ....
__________________
2009 JKU CRD Auto
2P1S
  #26  
Old 04-03-2011
murray's Avatar
murray  murray is offline
i am the CIG
 
Join Date: Jun 2003
Location: west oz
Age: 58
Posts: 3,796
What Jeep do I drive?: XJ
Likes: 7
Liked 22 Times in 16 Posts
Default

guys only prob i can see with diluted mix is the temps that engine runs at you could suffer explosive errosion on the the block barrel area
due to surface cavitation as coolant has a lower boil point
basic physics on latent heat point to boiling point is only 1 deg
now i am not saying cooling system boiling point but the area of interaction between coolant and barrell area
on the desiel these are wet liners i run cat elc 50/50 premix
and have no probs
the other thing regardless of brand pre mix is ready to go for a trail top up
__________________


Proud member of the "She'll Be Right" Gang
yes LEZ is my brother
  #27  
Old 04-03-2011
carvesdodo  carvesdodo is offline
No Winching
 
Join Date: Jan 2008
Location: N.S.W.
Posts: 2,960
What Jeep do I drive?: XJ
Likes: 19
Liked 71 Times in 41 Posts
Default

Quote:
Originally Posted by josh9465 View Post
so in Aust where the temps are warmer, its better to use a 30/70 coolant? i think i get that.

i gather water is better at absorbing heat than pure 100% eth-glycol???

so what coolant brands at 30% do you recommend to use in the 4.0L carves?

cheap and nasty, expensive or mediocre?
Eth-Gly in addition to being an anti-freeze ... is a heat transferring item ... not so much a cooling product ... Gathers heat OK ... but needs a damned good heat exhanger unit (radiator) to lose the heat ...
Dont even mention using 100% eth-gly
60/40 Eth-Gly/Water ... is the max even chrysler recommends .... and is most useful for when on a polar bear hunt ....

30/70 will give you a slight gain, as will a slightly lower thermostat rating and a better fanclutch etc. Its all dependant on how you approach your cooling system.

Gotta remember - A jeep ... or any other vehicle ... doesnt have a radiator, fanclutch or coolant etc ... It has a "cooling system" ... and the cooling system has a radiator, fanclutch, coolant etc.

Overall benefit is a mild combination of things rather than looking for a major "fix" with just one item.

I recommend a quality known brand with aust std ratings and the additives your vehicle needs .... and would be very shy on a Crazy Clarks special or any other mix offering miracle overheating cures

For my own personal use ... I just use the tectaloy 60plus "type B" 10/90 mix and change it every 12mnths. Using a fancy 5yr longlife coolant to keep the ecofreaks happy doesnt rattle my chains ... But "type B" is not ideal if you have a heap of aluminium bits tho.

If I was spending some time down the snowy I would run a 30/70 ... even though I never used anti-freeze when I lived down there and the HR was a new holden release ...... I'd reckon a 30/70 mix in the Valvoline G-05 ( http://www.valvoline.com.au/files/productpdfs/52.pdf ) would probably be pretty good. G-05 is pretty much the formulae Mercedes has been using for donkeys ages apparrently ... and the other coolant brands have their versions.

With Rodges permission I might provide a bunch of eth-gly/water mix characteristics and the original tech site link in a later post ..... but I need to lay it out so that the individual bits of info arent misconstrued ...

So PM, post example, heading your way for approval in a few days Rodge.
__________________
I hate watching simplicity and reliability being ruined by bureaucracy and technology.
Post New Thread  Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


» Advertisements_AS2
Powered by vBadvanced CMPS v3.2.3



All times are GMT +10. The time now is 01:30 AM.




AJOR does not vouch for or warrant the accuracy, completeness or usefulness of any message, and are not responsible for the contents of any message. The messages express the views of the author of the message, not necessarily the views of AJOR or any entity associated with AJOR, nor should any advice be substituted as technical advice replacing that of a mechanic. You agree, through your use of this service, that you will not use AJOR to post any material which is knowingly false and/or defamatory, inaccurate, abusive, vulgar, hateful, harassing, obscene, profane, sexually oriented, threatening, invasive of a person's privacy, religious, political or otherwise violative of any law. You agree not to post any copyrighted material unless the copyright is owned by you or by AJOR. The owner, administrators and moderators of AJOR reserve the right to delete any message or members for any or no reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold harmless AJOR, the administrators, moderators, and their agents with respect to any claim based upon transmission of your message(s). The use of profile signatures to intentionally mislead or misdirect any member on this forum is not acceptable and may result in your account being suspended. Any trip that is organised through the AJOR forum is participated at your own risk. If you or your vehicle is damaged it is your responsibility, not that of the person that posted the thread, message or topic initiating the trip, nor the organisers of AJOR or moderators of any specific forum. This forum and associated website is the property of AJOR.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.

AJOR 2002 - 2019 AUSJEEPOFFROAD.COM. All corporate trademarked names and logos are property of their respective owners. Ausjeepoffroad is in no way associated with DaimlerChrysler Corporation or Fiat Jeep.
www.midlifemate.com wayalife.com jkwrangler.com ausjeepforum.com jk-forum.com canadianjeepoffroad.com cryptoprofitcalculator.net
vB Ad Management by =RedTyger=