In dash digital oil temperature gauge

[DivineStrike]

Under the gauges section In the dash there is a oil temperature gauge that gives you readings based on color. Is there anyway someone can post up a picture with an overlay of what temperature it is actually indicating. Preferably in increments of 10 or 20 degrees.

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[hunter7389]

Well, it doesn't tell you the actual #. I suppose someone with a scantool might copy down the actual temp, but I haven't seen that yet.

 

[DickR]

Under the gauges section In the dash there is a oil temperature gauge that gives you readings based on color. Is there anyway someone can post up a picture with an overlay of what temperature it is actually indicating. Preferably in increments of 10 or 20 degrees.

From the Service Manual CD:

38-60° C (100-140° F) (low)
61-137° C (141-279° F) (normal)
138-146° C (280-295° F) (warm)
147-160° C (296-320° F) (hot)

HOWEVER I can find absolutely no indication that there is actually an oil temperature sensor. Not in the details of the virtual gauges, in the wiring diagrams, or in the engine assembly. All the manual says is that the temperature is received from the PCM. Therefore there is a good chance, until someone who knows for sure says otherwise, that the temperature is calculated somehow from water temperature. Hopefully not from oil pressure since that could change with different brand and viscosity oils.

EDIT: On further research in the service manual there is a decent chance that the PCM uses the cylinder head temperature obtained from the cylinder head temperature sensor to infer the oil temperature.

 

[15Pony]

Isn't the cylinder head temp inferred from the coolant temperature, since coolant is running through the head, or is there an actual head temp sensor? By the same token oil is flowing through the head too, so maybe the oil temp is also inferred from cylinder head temp.

 

[DivineStrike]

No the oil temp definitely changes independently from the cylinder head temp and water temp. During spirited driving you can see the oil temp climb while water temps stay about the same. Cylinder head temps don't increase that much. Also, when the car is off for a "few" minutes, you will notice cylinder head temps drop below operating temps, while the oil temperature can stay above normal non spirited temperatures when you turn the car back on.

And DickR, thanks that works good enough for me. I must have missed that or just forgot it was there

 

[Budwise]

In the 2013-2014 cars there was no oil temp sensor, it just calculated it based on a series of other things and I'd bet its doing the same here. Its probably not directly proportional to any one other thing so seeing one go up without the other probably doesnt mean much. I ran my 2013 GT on the track and about 15 minutes into the sessions I could easily put it in the red so I'd start short shifting it to keep RPM's down a little. I REALLY wish Ford would just use a proper oil temp sensor and substitute it in for the dumb Vacuum gauge.

I'll be looking into how to get the GT350 oil temp gauge and sensor on our cars as soon as its available.

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