I ran an oil temp sensor in my Duster. It takes a long time for oil to heat up. Usually takes about 10 miles of driving before oil is up to temp. Oil doesn't get warm in the pits or driving to the staging lanes.
Same here, it takes time for oil temp to warm up. I see mostly between 180-220 temps on the street depending on ambient/engine temp and load and it takes a little while to get it there.
Thing is...I am told the zinc/phos/wear additives are designed to do their thing when the oil is at operating temp.
Or in other words they are pretty much along for the ride till that time.
