engine coolant change
Thread Starter
CF Veteran
Joined: Sep 2011
Posts: 10,447
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From: Frederick, MD
Year: 1989
Model: Cherokee
Engine: 4.0
I have little to no engine coolant in the car. But its cold enough to keep the engine at a safe temperature. So what kind of coolant is recommend? And do I need to drain the old coolant.
CF Veteran
Joined: Feb 2010
Posts: 12,367
Likes: 23
From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
I think I would spend some time to find where all of the coolant that is suposed to be in the cooling system went. Weather does not factor in much when there is "little to no" coolant in the system, these are not air cooled engines.
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CF Veteran
Joined: Sep 2011
Posts: 10,447
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From: Frederick, MD
Year: 1989
Model: Cherokee
Engine: 4.0
Originally Posted by Bustedback
I think I would spend some time to find where all of the coolant that is suposed to be in the cooling system went. Weather does not factor in much when there is "little to no" coolant in the system, these are not air cooled engines.
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Old fart with a wrench
Joined: Nov 2010
Posts: 14,398
Likes: 740
From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
When you buy your coolant, make sure what you buy. Some is premixed and some is full strength. If you buy premix, you don't have to mix water with it. Remember coolant cools best when it is the proper strength. A 50/50 mix gives you best cooling and -34 F freeze protection.
Old retired gearhead.
Old retired gearhead.
Thread Starter
CF Veteran
Joined: Sep 2011
Posts: 10,447
Likes: 0
From: Frederick, MD
Year: 1989
Model: Cherokee
Engine: 4.0
Originally Posted by dave1123
When you buy your coolant, make sure what you buy. Some is premixed and some is full strength. If you buy premix, you don't have to mix water with it. Remember coolant cools best when it is the proper strength. A 50/50 mix gives you best cooling and -34 F freeze protection.
Old retired gearhead.
Old retired gearhead.

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