Excursion Oil Temperature Warning Light

I have an Excursion too, and I had a similar problem a while back. Was it also showing up intermittently, or is it constant? Does it happen more when the engine is hot?

It seems to happen more when the engine warms up. When it's cold, everything seems fine, but after driving for a bit, the warning lights start going crazy. Is that what you experienced?

Yep, sounds exactly like what I went through. Turned out to be the oil temperature sensor. I'd suggest taking it to a workshop; they can diagnose it properly and replace the sensor if needed.

Thanks for the advice! I had the oil temperature sensor checked, and you were spot on – it was faulty. Got it replaced for 95€, and now everything's running smoothly. Appreciate the help!