[Werner]

Originally Posted by alexiskai

Werner, how exactly did you measure this?

Alexis,
this is an intermediate flange with a sandwich construction. This separates the inlet and outlet channels. Two pressure gauges are mounted on each level. The differential pressure then gives the filter resistance in %.

Werner, why did you insulate the oil filter? I believe that is what that material is that is around the oil filter.

Herb,
You're right. I measured the oil temperature, and when driving gently, the oil always stays too cold, below 70°C. So I insulated the filter to prevent the oil from losing even more heat.
I have a simple temperature sensor-label attached to the front of the filter, which tells me the highest temperature that the oilfilter reached.