What is normal oil and water temperature while city / country driving?

 

Checked mine out after your post. This morning coming into work 93C and 94C respectively. That works out to 199F and 201F if you're imperial.
Is that normal/average, dunno.

 

Depends on how how it is outside. You want to see steady-state oil temp around or below 212F (the boiling point of water), and coolant around 190-200F. However, if it's hot, you'll see higher temps. If you're running hard, you'll see higher temps, depending on how hard you're running things. The faster you move, generally, the lower your temps will peak - so 3000 rpm uphill on twisty roads is hotter than 3000 rpm uphill a long straight road in higher gear.

If you're running hot, step 1, blow out the radiator core with compressed air, through the fins, back to front. That can drop your temps 10, 15, 20... hell, 30, 40, 50 degrees F, depending on how dirty it is.

 

See if this helps:

The low speed cooling fan is commanded on when the coolant temperature reaches 108°C (226°F). It is turned off if the coolant temperature lowers to 104°C (219°F). The high speed cooling fan is commanded on when the coolant temperature reaches 113°C (235°F). It is turned off if the coolant temperature lowers to 108°C (226°F). When the A/C is on and the coolant temperature reaches 85°C (185°F), the low speed cooling fan will be turned on at vehicle speeds less than 56 kPh (35 mph).

Normal driving with driving speed that flows sufficient air across the radiator with the AC off, the coolant temperature with a factory thermostat is 190°F, The fans will be off. The factory setting will not let the first cooling fan come on until the coolant reaches 226°F.

The low speed cooling fan is commanded on when the coolant temperature reaches 226°F. It is turned off if the coolant temperature lowers to 219°F. The high speed cooling fan is commanded on when the coolant temperature reaches 235°F. It is turned off if the coolant temperature lowers to 226°F. When the A/C is on and the coolant temperature reaches 185°F, the low speed cooling fan will be turned on at vehicle speeds less than 35 mph.

The low speed cooling fans are controlled by the PCM based on the following inputs:

The A/C system
The Engine Coolant Temperature (ECT) sensor
The Vehicle Speed Sensor (VSS)
The PCM will turn the low speed cooling fans ON when any of the following conditions exist at idle:
Certain PCM Diagnostic Trouble Codes (DTCs) are set
ECT above 104°C (219°F) will enable low speed fans
A/C head pressure above 1510 kPa (219 psi)
Once the low speed fans are turned ON by Engine Coolant Temperature, the PCM will turn the fans OFF when that temperature has dropped about 6°C (11°F) . If the low speed cooling fans are turned ON by high A/C head pressure, the PCM will turn the fans OFF when the pressure has dropped to 1034 kPa (150 psi). The minimum ON time for the low speed cooling fans is 50 seconds.
When engine speed is above 3500 RPM for 12 seconds and the engine oil temperature is above 127°C (261 °F), the low speed cooling fans will be turned ON.

HIGH SPEED COOLING FANS

The High Speed Cooling Fans are controlled by the PCM based on the following inputs:
The A/C system
The Engine Coolant Temperature (ECT) sensor
The Vehicle Speed Sensor (VSS)
The PCM will enable high speed cooling for both fans when any of the following conditions exist:
Certain PCM Diagnostic Trouble Codes (DTCs) set
ECT above 109°C (228°F)
A/C head pressure above 1551 kPa (225 psi)
Once the high speed cooling fans are turned ON by the Engine coolant temperature, the PCM will turn the fans OFF when that temperature has dropped about 6°C (11°F) . If the high speed cooling fans are turned ON by high A/C head pressure, the PCM will turn the fans OFF when the pressure has dropped to 1241 kPa (180 psi). The minimum ON time for the high speed cooling fans is 26 seconds.

When driving/ cruising the engine should run close to what the thermostat is rated.

Oil temperatures are usually 20dgF higher than the coolant temps but change more slowly than coolant temps.

 

As long as your radiator is clean and your fans are working properly, it all depends on ambient temps. In the winter with 40-50 degree weather, cruising on the freeway, my oil and coolant stay in the high 180s/low 190s range. The past couple weeks, with 115 degree ambient temps, I've seen the oil get as high as 260 when I was really gunning it. Just normal driving, the oil has been hanging around 240. Even in the hot weather, I don't recall ever seeing the coolant go above the low 230 range.

 

As has been said, it all depends.

Try the long uphill stretch going west to east in Death Valley when it is 115 to 120 deg F out.

This is probably at or close to the worst case design cooling condition.

While my 2002 MN6 did not overheat, it wasn't very far below redline.

 

Wow, that is a torture test. I loved DV with my C5... but I did it in the winter, when it was only 75F, like normal people do!

 

I do appreciate all the feedback and now realize that my vette is running normal, but will clean rad fins to be sure all is clear down there.