How hot does your truck get

[Phillip A.]

My truck runs on the A of normal, when Im towing about 10,000lbs and regular driving its between the R and M just wondering if this is normal.This seems kinda warm but its about 100 degress here in TX. I was thinking about putting a new thermostat in it, I think it has the original still in it with 223,000 miles on it.Does anybody know how hard it would be to replace it.

[Big Bird]

If I am running hard with a load, mine will reach the "N". I am not familiar with what the scale or the acceptable error is with those gauges though.

[kx592]

Well if it gets TO HOT you will get a engine temp warning on your lil light section where the wait to start light is...same pannel.

[wbones9]

Empty I sit at O.

I have seen it climb to between the R/M when towing though.

[Rantheman]

The Highest mine ever reaches is between O and R in All Driving conditions except when warming up

[Koonswala]

mine runs bout the N O tops Im in LA so same temp outside if you change it get the outlet on the top side of the block and go slow i just changed mine it was a pain the bolts broke the outlet is cast so it broke it all new now just took more trips to the store. lol good luck