I have replaced my thermostat with a genuine one because of a leak.
I now read that these don't run hot enough for good economy. this one sits on 168 to 170 no matter how I drive it. Is there a quick and easy fix to get the temps up?
Peter

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2006 KJ CRD
Yeti tune
EGR delete
Straight through exhaust
Airtex fuel pump
2 micron filter
2" lift

Jeff a.k. "Turbo-Diesel-Freak" on this forum manufactures a nice custom made thermostat housing that allows for changeable thermostat valves.
If you have the funds, this is the "Cadillac" of thermostats for the Jeep Liberty diesel:> viewtopic.php?p=905589&sid=403dd7e2d118af2916b723d2d857c44c#p905589
Not cheap, but very good and its design allows you to change and run different temperature thermostat valves within its housing depending on what temperature you want to run your engine.

Jeff's contact info:
Jeffrey Allan Bauer
4J/1G Hi Performance Engine Thermostats
3727 - 117 Street N.W.
Edmonton, Alberta, Canada
T6J 1S5

Tel: 1-780-434-2324
Mobile: 1-780-844-0135
E-mail: INTCOMBUSTION2@hotmail.com

Hot Diesel Solutions Model 001 engine thermostat

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Supporting Vendor and Moderator of LOST
05 Jeep Liberty CRD Limited
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount
98 Dodge Cummins 24 Valve

Rock Auto sells a Stant branded thermostat that claims it's 188 deg F. I put this in a few months ago after the 2nd Mopar thermostat failed open. I haven't checked temps through the ECU but my temp gauge sits right at 12 o'clock.

Sent from my Pixel 3 using Tapatalk

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2006 Jeep Liberty CRD Limited
Gen2 Fuel Head - Magnaflow Exhaust - Ram transmission swap - In-Tank Lift Pump
Moab Wheels - 245/75/R16 LR E Cooper Discoverer AT3 Tires - OME Lift 790/90009 948/60069 - Etecno Glow Plugs - V6 Airbox
RUNNING B100
Pic of my Jeep!

No quick or easy fix.
Either live with what you've got or but the TDF unit.

Not likely you will notice much difference in MPG. Especially in summer time.
If you have very cold winters, then you might notice a difference.

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U.S. Army Retired

There is also a stant 195 degree in hose thermostat that fits the part number is 13519. I have not used it with a functioning thermostat mine was stuck open. Some believe more likely to have blown head gasket using the stant . Its up to you if you think its worth the risk.
https://www.amazon.com/gp/product/B000C ... UTF8&psc=1

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05 Blu LIM, OME GDE Tbo, wk II 245/75/17, KC Lights, bull bar, 195K H TC
05 Blu Lim, Dayton, GDE HT, 255/75/18 , 210K , H TC
06 Bla Lim, GDE Eco, Destination AT 245/75/17, 151K, H TC
06 D Khaki Lim 126K wkII Eur TC
05 D khaki Lim 145k refurbishing
All CRDS: Fumoto, Lift , Fan Shroud mod, fuel head Gen II, SAMCOS,self TB, 2 Mic filt, Hayden

Do your engine and your pocketbook a favor and DO NOT install or use an inline thermostat.
Some that have installed them, have reported a blown head gasket or worse yet a cracked head as a result of running one.
Very simply not worth the possible risks....

_________________
Supporting Vendor and Moderator of LOST
05 Jeep Liberty CRD Limited
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount
98 Dodge Cummins 24 Valve