Oil Temp Gauge Tick Values
Each oil temp gauge tick on the scale between 100 and 220 degrees represents 15 degree increments. Yet each tick between 220 and 260 degrees are 5 degree increments. This makes no sense to me as it can't be linear and non linear at the same time.......can it?


Each oil temp gauge tick on the scale between 100 and 220 degrees represents 15 degree increments. Yet each tick between 220 and 260 degrees are 5 degree increments. This makes no sense to me as it can't be linear and non linear at the same time.......can it?
All a matter of what the PCM says to show and since they're obviously not old-school mechanical gauges the ticks can vary in terms of what they represent.
In a similar fashion, some manufacturers have a dead band on, for example, your coolant temp. Within the normal 20-30 degree operating range, the gauge will stay in one spot, even though the sending unit is obviously reflecting fluctuations up and down in terms of temp. Again the PCM is showing a refined output of sorts.


Each oil temp gauge tick on the scale between 100 and 220 degrees represents 15 degree increments. Yet each tick between 220 and 260 degrees are 5 degree increments. This makes no sense to me as it can't be linear and non linear at the same time.......can it?
IF, you are referring to the ECT gauge, the answer to some your question/comment is in your OM, and I agree with bdhigs as regards "linearity". It is not. The gauge is set up and the pcm is programmed that way. It's a "logarithmic" type scale reading. I'm thinking the small gauge size has a lot to do with it.
From what I'm hearing from your question, you don't like it.



