Hoat

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Tog

Full Access Member
Joined
May 9, 2016
Messages
270
Reaction score
0
Location
AU
I have no idea what coolant my 3.7 is running is there a way to determine if it is HOAT or not

Sent from my SM-G930F using Tapatalk
 

Kal-El

Full Access Member
Joined
Dec 19, 2015
Messages
545
Reaction score
12
Location
Glendale, Arizona
HOAT will generally be orange or yellow. BUT the OAT (Dexcool) can also be orange...and mixing the two is not good because that significantly reduces coolant service life. Personally, if there were any doubt I would do a complete flush and install the HOAT as recommended by DC.
 

Tog

Full Access Member
Joined
May 9, 2016
Messages
270
Reaction score
0
Location
AU
Mmm mine is probably closer to green than anything else time to flush it out

Sent from my SM-G930F using Tapatalk
 

LibertyTC

Well-Known Member
Staff member
Moderator
Joined
Oct 24, 2008
Messages
9,081
Reaction score
1,747
Location
B.C. Canada
eek=Ya green is not Hoat. You can use Zerex-G05 or Mopar Hoat.
 

JasonJ

Full Access Member
Joined
Jul 8, 2013
Messages
1,521
Reaction score
51
Location
Michigan
Man... I wish people would stop mixing anti-freeze compounds ... thinking they're all the same.

Not saying that Tog did that... but previous owners and even some shop owners.
 

tjkj2002

Full Access Member
Joined
Dec 17, 2006
Messages
10,612
Reaction score
39
Location
Somewhere between being sane and insane!
Just a reminder that coolant color means nothing these days,and hasn't for 15 years.

The color is added per the distributer.

I've seen pink,purple,green(both light and dark),blue,orange,red,yellow,and white coolants and besides white all can be either HOAT or OAT coolant.White is only polypropylene glycol coolant(blue is a common color for this to) which should never be used in any modern cooling system.
 

Tog

Full Access Member
Joined
May 9, 2016
Messages
270
Reaction score
0
Location
AU
I have only had my jeep for about 8 mnths and never knew anything about HOAT till i read a post on here just thought it might be a good idea to check into it

Sent from my SM-G930F using Tapatalk
 

Jbergun

Full Access Member
Joined
Jun 4, 2015
Messages
1,009
Reaction score
2
Location
Chicago
I would flush it out yourself cant trust just some libe shoppe to use hoat unless you supply it and watch them pour it in after the flush is complete
 

ltd02

Comfortably numb
KJ Supporting Member
Joined
Aug 15, 2014
Messages
2,695
Reaction score
238
Location
North Central Maryland
I would flush it out yourself cant trust just some libe shoppe to use hoat unless you supply it and watch them pour it in after the flush is complete

Check your local dealers too. Around me they sometimes have some pretty good deals on coolant flushes. You'll get the right stuff too.
 

BorincanoKJ

Full Access Member
Joined
Feb 11, 2015
Messages
112
Reaction score
0
Location
San Lorenzo, Puerto Rico U.S.A.
I'm totally agreed with tjkj2002 the color on coolant is not too much important to make sure if you have that especially chemical HOAT or OAT.

If you are not sure that your antifreeze have that ingredient HOAT or OAT i recommend to make a full coolant flush. That way you can extend a little bit more the performance of your radiator.

Regards!
 

Jbergun

Full Access Member
Joined
Jun 4, 2015
Messages
1,009
Reaction score
2
Location
Chicago
Check your local dealers too. Around me they sometimes have some pretty good deals on coolant flushes. You'll get the right stuff too.

I dont trust stealers i dont want to go in for a recall because i just feel like its going to be a bigger issue than a free part.

I'm totally agreed with tjkj2002 the color on coolant is not too much important to make sure if you have that especially chemical HOAT or OAT.

If you are not sure that your antifreeze have that ingredient HOAT or OAT i recommend to make a full coolant flush. That way you can extend a little bit more the performance of your radiator.

Regards!

Agreed that color means nothing but it can tell you alot. Mine was brown when my radiator got the infamous corner crack. After that i replaced most of the cooling system everything except the heater core and now a year later the coolant looks clean as the day i put it in. Coolant is right next to oil on my regular gas fill up check list. If the levels are changing its going somewhere.
 

Tog

Full Access Member
Joined
May 9, 2016
Messages
270
Reaction score
0
Location
AU
True on the color just bought Penrite HOAT this morning it's green but clearly says HOAT and suitable for jeep. I have no idea what is in it i havent touched it since I bought the car.

Sent from my SM-G930F using Tapatalk
 

Kal-El

Full Access Member
Joined
Dec 19, 2015
Messages
545
Reaction score
12
Location
Glendale, Arizona
Hmmm...since you're in AU that stuff in your Jeep now just might be the green Penrite. Just to be on the safe side I'd flush it out anyway.
 

teeje

Full Access Member
Joined
May 5, 2014
Messages
733
Reaction score
2
Location
Toledo
Never had an issue with Regular green coolant (comes in a yellow bottle and starts with a p) yet again I've ran that ever since I had the new engine and radiator put in


Sent from my iPhone using Tapatalk
 

HoosierJeeper

Gold Supporter/Admin
Staff member
Administrator
Joined
Jan 20, 2009
Messages
20,855
Reaction score
266
Location
Western WI
Never had an issue with Regular green coolant (comes in a yellow bottle and starts with a p) yet again I've ran that ever since I had the new engine and radiator put in


Sent from my iPhone using Tapatalk

Prestone doesn't make any HOAT coolants, at least I've never seen one. I have a yellow jug of the green prestone for the XJ since that's what it takes. Definitely not HOAT.
 

teeje

Full Access Member
Joined
May 5, 2014
Messages
733
Reaction score
2
Location
Toledo
Prestone doesn't make any HOAT coolants, at least I've never seen one. I have a yellow jug of the green prestone for the XJ since that's what it takes. Definitely not HOAT.



Never said it was HOAT. Just said it was regular coolant


Sent from my iPhone using Tapatalk
 

HoosierJeeper

Gold Supporter/Admin
Staff member
Administrator
Joined
Jan 20, 2009
Messages
20,855
Reaction score
266
Location
Western WI
That's the problem...I'd get that out of there. Coolant isn't like oil where you can pick about anything and be ok. Don't want to see you ruin something in the KJ since it's all fixed up now.
 
Top