what temp do you all run at?

[YeaItsSlo]

my jeep seems to be running a little hot over 210.. not much but a little over 210.. whats normal and i could i put a lower thermostat into this to keep it cooler?

[johnnyc]

210 is normal.

[hideyoshi]

I'm at 210 too.

[XgeekstarX]

a needle width before 210

[YeaItsSlo]

what about over 210 though.. a needle width after 210....

[Flyfisher]

I run a needle width below 210...but have found that running the AC on slow trail rides helps...helps keep things below 210.....it's normal.

[CanMan]

About 180 with the AC on. Hood spaced 1" in the back.

[badron]

A 01 sport 210 to 230 pulling 4350 LB trailer up a long grade. Empty she never gets off 210.

[stewie]

i almost never hit 210. then again my tstat is stuck open. sucks trying to get warm in the winter!

[jeepsrock]

Well in the summer when its over 95F outside i can never get mine to run under or at 210F. Usually mine is a needle above the middle and never gets past 220F. If yours isnt getting past 220F i wouldnt worry about it.

pete

[90xj06]

i have mine just shy of 210 maby 195ish.

[langer1]

210 +/- 5

[UNCC_99XJ]

210 +/- 5

ditto...changing the coolant helped keep it pretty steady at 210 regardless of temp....but on those days where it was pushin 100 outside it would creep up to about 212 to 215 sitting in traffic with the a/c on.

[MudDawg]

210...normal design range.

[Oizarod115]

before my new radiator my numbers were:
230 round town, 240-255 highway

new 3core radiator:
round town 180ish (160 t-stat... i know, i know its bad for the truck)
highway 180ish
long lights/bad Atl traffic 210

[robs]

This is normal for me.

http://sija.org/robs/hot.jpg

[beakie]

for those of you running on the cooler side of 210... whats too cool?
my Celcius output gauge says normal is 100 (your 210... I can't convert but gauges are same just dif numbers)
but my needle is just 1/2 way too normal (if it were a fuel gauge 1/4 empty if that makes sense)... or just hovering over 40 on my 97 XJ Sport. I took out the A/C condersor in front of my rad, and new water pump last month, rad flush just before pump and new t-stat same time... it went from overheating on trail one day too only getting warm when in traffic on very hot day and even then its just warm not even normal.
So I wonder is this too cool, am I in the 'constant warm up' stage and getting worse milege than ever... or am I just lucky and this is ok.

[Art Triggs]

a good temp range seems to be between 195 and 210, any cooler isnt so good, any hotter , is too hot for an extended period of time at least, you can expect the temps to vary a little depending on the driving conditions and temps outside.

[dizzymac]

My 90' runs about 180/ Thought gauge was off but did infrared scan 181.I neeed a hotter thermostat

[JeepFreak91]

my guage is about 20 degrees off so I run about 210-215

[johnnyc]

A higher or lower temp thermostat only changes when it opens to allow coolant to start flowing through the system. It is not going to make your engine run hotter or cooler.

The 4.0 is designed to run with a 195 degree thermostat. Using a cooler temp thermostat only delays the inevitable and it takes a little longer for the engine to reach the optimum operating temperature of 210 degrees.

:flame:

[Crusher16]

A needle width above 210 most of the time

[jeepdude10000]

for those of you running on the cooler side of 210... whats too cool?
my Celcius output gauge says normal is 100 (your 210... I can't convert but gauges are same just dif numbers)
but my needle is just 1/2 way too normal (if it were a fuel gauge 1/4 empty if that makes sense)... or just hovering over 40 on my 97 XJ Sport. I took out the A/C condersor in front of my rad, and new water pump last month, rad flush just before pump and new t-stat same time... it went from overheating on trail one day too only getting warm when in traffic on very hot day and even then its just warm not even normal.
So I wonder is this too cool, am I in the 'constant warm up' stage and getting worse milege than ever... or am I just lucky and this is ok.

Ya my XJ stays around 100 also, but will goto 120 intown with ac on.

[dizzymac]

I have a 165 thermo. in it now. when I had a 195 it always ran over 200. Although a thermo. does control when water flow from block to rad. happens it does have an overall effect on the eng temp.
I'll be replacing the 165 with a 195 but its all the store had when I got it. The infrared doesn't lie.

[BrettM]

I'm on my 3rd '88 XJ/MJ and the first 2 would run at 210 whether it was 5 degrees or 105 degrees (only upgrade was GDI 3 core), the MJ I just got runs around 180 even when it's hot out... weird...

[johnlv6]

My 97 runs at 210 unless it's 95+ out and i'm sitting in traffic...then it'll creep up about 10 degree.

[mbenonis]

210, right on the dot.

[Gerr]

180-190 is where mine stays towing wheeling or whatever, I have the hood spaced in the rear and the aux fan set to come on with the ignition switch. But hey I live in the desert

[x99j]

a hair below 210 most of the time. when it is above 90 with the ac off it will run a hair above 210 while idling (stuck in traffic):thumbup: