What causes increased viscosity in a UOA ?

[BlueBird]

I just had a UOA done ( see link ) and as you can see the oil thickened up a bit. Is that good or bad ? what would cause oil to perform like that ?


http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=get_topic;f=3;t=001915

 

[haley10]

Terry Dyson is the expert. I am not. This thickening is not related to the MaxLife, imho. It's a pretty decent oil and would not normally thicken at this interval. The Potassium level might suggest a slight coolant seepage into the oil to my untrained eye. I would expect K to be zero. This might explain the high insolubles and thickening up.

I would get Terry's analysis if this thickening persists.