If I were doing lots of hiway trips, I'd agree with you. But my van is used mostly for short errands around town and then camping trips every couple months. So due to time and driving short errands, I change every 5k. That is changing it every 6 months the way I drive. As a ex nuclear power tech, I am very conservative as a mechanic.Changing your oil ever 5k miles is a waste of money. Mine regularly goes 8500 - 9000 miles between changes as specified by the oil change warning system. One reason to use full synthetic is because it's designed to go that far between changes. I'm talking gas engine here, of course.
When reading 172 have a friend watch the gauge and reach under the dashThat is exactly what happened to me. All 4 wires just sliced in half.
Just got in van to run service call. No AC is not fun in 90 plus degrees temps.
Also I forgot to add my dash outside temp gauge has gone crazy. Currently 3 dashes but was reading 172 last week then 0 then normal temp.
I'm thinking I have some electrical issues for sure.