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| HOAT Coolant? http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=88&t=63620 |
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| Author: | lfhoward [ Fri Nov 11, 2011 1:28 pm ] |
| Post subject: | HOAT Coolant? |
I just passed 30K miles on my '08 KK, and I noticed that the coolant level in the reservoir is about 3/4 inch (or 2 cm) below the min line when cold, and right at min or a little above when warmed up. I'm thinking I should top off the coolant. I have two questions: 1) The owner's manual specifies Mopar HOAT coolant, which is not available at AutoZone or Advanced Auto. I have a bottle of PEAK Long Life 50/50 left over from my old XJ, which says it is compatible with any color antifreeze and all makes and models. Is this ok to use, or should I go visit a dealer for the Mopar antifreeze? 2) Is it normal for the coolant level to be down below min at this point in a KK's life? I don't know that it's ever been changed before. I am the second owner, and the first owner put on 23K of city miles in 3 years. Thanks in advance for that KK wisdom. --LFH |
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| Author: | lfhoward [ Fri Nov 11, 2011 4:47 pm ] |
| Post subject: | Re: HOAT Coolant? |
I went ahead and got the Mopar coolant, because I thought it would be better to be safe than sorry. The coolant reservoir took about 1/3 of the gallon to bring it up to max. I'm still curious what the answers to my questions are, in case anyone would like to weigh in. Thanks, --LFH |
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| Author: | ibHenry [ Fri Nov 11, 2011 5:55 pm ] |
| Post subject: | Re: HOAT Coolant? |
You did the right thing, run a search on the subject to get all the specifics. I do know that until you do a complete and thorough flush of the cooling system, you don't want to mix it with anything else,i.e. green coolant, or any other kind except Mopar. 
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| Author: | lfhoward [ Fri Nov 11, 2011 7:24 pm ] |
| Post subject: | Re: HOAT Coolant? |
Thanks for confirming my suspicions. I searched on the general discussions board and found what you were referring to: that mixing coolant types really gunks up the system. I hadn't realized that '02-'07 Liberties also needed this special Mopar coolant, because I went straight from owning an old school 2000 XJ to an '08 KK. It makes sense, though, because they've had the 3.7L engine since 2002. |
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| Author: | tjkj2002 [ Fri Nov 11, 2011 10:30 pm ] |
| Post subject: | Re: HOAT Coolant? |
You can also get your HOAT coolant and any Ford dealer or Zerex GO5 is also HOAT coolant(mostly found at Napa). |
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| Author: | lfhoward [ Sat Nov 12, 2011 6:51 pm ] |
| Post subject: | Re: HOAT Coolant? |
Good to know. Thanks, tjkj. |
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| Author: | sota [ Sat Nov 12, 2011 8:19 pm ] |
| Post subject: | Re: HOAT Coolant? |
called my local supplier (and client of mine)... they have zerex G-05 gallons, unmixed, for $13.50. that seems pretty reasonable compared to what I've been seeing otherwise. also have gallon jugs of distilled water, so I'll probably be getting a couple pairs soon. Are you guys changing on mileage or time? |
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| Author: | lfhoward [ Sat Nov 12, 2011 8:29 pm ] |
| Post subject: | Re: HOAT Coolant? |
That does sound more reasonable than the $24 per gallon of coolant that I paid at the Jeep dealer. I'm not changing my coolant now, just topping off. The manual says to flush the coolant at 102,000 miles, so I just thought I'd wait. The color of my coolant is still ok. I topped it off with straight coolant yesterday (before I realized the jug wasn't a 50/50 mix), so next time I will top off with distilled water to bring it back to about 50/50. How many miles are you at, sota? |
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| Author: | sota [ Sat Nov 12, 2011 8:58 pm ] |
| Post subject: | Re: HOAT Coolant? |
just rolled over 34k on a 2007. I'm still stuck in the Old School of coolant every 3-5 years or about 60k miles. Hell I don't even trust these extended oil change intervals and still do it every 3k miles religiously along with the filter! :ROFL: I even changed the trans/t-case/diffs at 30k. when it hits 60k I'll probably dip the trans and diffs and send them off for analysis before I change them again... especially the diffs since I filled them with expensive synthetics. but then another 30k for me and the jeep could easily be 5-6 years. 
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