S650 is there no actual oil temp sensor?

[Skye]

Is rpm inferred as well?

No. There is at least one sensor directly supporting RPM measurement: the Crank Position Sensor. The attached photo highlights its location.

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[Zig]

No, there is at least one sensor directly supporting RPM measurement: the Crank Position Sensor. The attached photo highlights its location.

Would an oil pressure temp sensor be outside of the possibilities?

 

[Skye]

Would an oil pressure temp sensor be outside of the possibilities?

One sensor which measures both? It's possible I suppose. There might be some manufacturers out there now using such a sensor. I like simple: one sensor for each reading (oil pressure and oil temp), both independent of one another. One sensor fails, I still have the other. Neither can interfere with the other.

From Ford's perspective, they probably removed a dedicated oil temp sensor for cost and QC. If you're producing millions of engines a year and determine most drivers don't need a $1 part, you save millions. One less widget is one less item that can leak or fail.

From the Driver's perspective however, accurate data and correlation of events is everything. As we're seeing in the comments above, while some are witnessing accurate readings, others are not. Pushing the car to the limits, it's best to confirm where that limit is before exceeding it.

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