Checked deltas today, is this to be expected?

[rlu_tech]

About 2K miles ago, when I first purchased my truck, I went ahead and blocked off my EGR cooler and replaced my oil cooler with a factory Ford one. The system has been flushed and am running CAT ELC coolant. I put my new Scan Guage II on it today, and drove down the highway to check deltas. The ambiant temperature today is 102*F . Driving at 65mph on level road, my delta was at about 12* difference. I'm wondering if anyone else has seen this much of a delta after a new cooler? Could the sweltering hot day play a role?

[jmast]

what were the temps? under any load at all?

[ZMANN]

that spread is a little high if reaching that delta without a load? ,,

they should stabilize to within a few degrees if everything is copacetic ,

did u do a coolant filter ,, what is your Actual ECT/EOT ? you may just be over cooling the coolant due to a tstat issue

[rlu_tech]

The truck had no load. The ECT was 195*, the EOT was 207*.

[rlu_tech]

The truck has no coolant filter.

[ZMANN]

get a filter IMHO

and keep an eye open ,, your ECT might be a tad low for the ambient

mine tends to run about 200 at that temp

[colo_dually]

Was the flush done after the oil cooler was replaced?

Temps are within reason with the temps, a 12* delta is nothing huge to worry about.
I also agree with the coolant filter install.

[rlu_tech]

A flush was done once before I bought the truck, and I did one after installing a new cooler.

[drunk on diesel]

flush probably clogged the new cooler a little

[dannyboy950]

You may want to look at your radiator as well. The same stuff that clogs the oil cooler flows thru the radiator as well.