Bone stock '23 ST w 26K miles
I was alerted to this when I was programming something via ForScan, but it showed a pending DTC for a P0128. Accidentally erased it unfortunately. But decided to monitor coolant temps for a bit and noticed i run consistently 172-177 degrees. Only once did I ever see 205 degrees. But 99% of the time i'm at 175 degrees on a 95 degree humid day sitting in traffic. On cool mornings and evenings, I run about 172-174. From browsing threads, i see i should be running around the standard 200 degrees that modern EFI engine normally run at. Coolant level is good.
I keep checking my DTC's and the pending P0128 hasn't returned.
Swapping out a tstat is not a huge issue for me. I've done more involved stuff. My concern is that i'm at 26K miles and have an ESP. I'd rather a dealer take care of it for the paper trail, so that if there is an issue down the road, i don't have to argue about it. (i've had issues with past cars)
But does this align? Should I be running warmer? Is a tstat replacement the logical next step? Would you just DIY it..or should I wait and see it a DTC comes back since I have time.
BTW these P3 V3 gauges are nice for this sort of stuff.

I was alerted to this when I was programming something via ForScan, but it showed a pending DTC for a P0128. Accidentally erased it unfortunately. But decided to monitor coolant temps for a bit and noticed i run consistently 172-177 degrees. Only once did I ever see 205 degrees. But 99% of the time i'm at 175 degrees on a 95 degree humid day sitting in traffic. On cool mornings and evenings, I run about 172-174. From browsing threads, i see i should be running around the standard 200 degrees that modern EFI engine normally run at. Coolant level is good.
I keep checking my DTC's and the pending P0128 hasn't returned.
Swapping out a tstat is not a huge issue for me. I've done more involved stuff. My concern is that i'm at 26K miles and have an ESP. I'd rather a dealer take care of it for the paper trail, so that if there is an issue down the road, i don't have to argue about it. (i've had issues with past cars)
But does this align? Should I be running warmer? Is a tstat replacement the logical next step? Would you just DIY it..or should I wait and see it a DTC comes back since I have time.
BTW these P3 V3 gauges are nice for this sort of stuff.

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