The IntelliStick Monitor Software provides easy interpretation of the oil condition graph. (The temperature compensated conductance graph is described in detail at How It Works).

Although each curve is unique, the characteristic turning points of the curve will be present with all oils because they degrade in the same way. The difference between curves will be in the value and duration of each of the stages. For example, premium oils such as synthetic oils may contain more additives and resist oxidation longer.

Interpreting a given curve for optimal oil change interval requires an understanding of each stage, through which a compromise can be made between the oil efficiency and the life of the engine.

The IntelliStick Monitor Software helps with this - it examines the curves and indicates the basic oil states. These are:

Additives Present
This is the first stage with new oil. All modern motor oils contain additives to enhance lubricity, prevent oxidation, and protect the engine effectively. In this stage these additives are used up as they work.
Possible Action: Do nothing.

Base Oil Protection
Additive and antioxidant package is mostly depleted. Base oil is providing all lubrication. Some polishing wear may be occurring.
Possible Actions: Do nothing; change oil; top-off; or add an additive package.

 
Oxidation Occurring
Oxidation by-product buildup is occurring; oil is oxidizing, breaking down and further losing ability to lubricate. Engine wear is accelerating.  Rapid & unexpected oxidation may mean fuel intrusion.
Possible Actions: Change oil; or change oil at predetermined oxidation threshold.

 
Viscosity Increasing
The oxidation stage has continued for an extended period, so that the viscosity of the oil has started to increase and the severity of engine wear has increased.
Possible Action: Oil change is overdue.

 
Soot May Be Present
The oxidation and viscosity states cannot be measured if there is significant soot present in the oil.
Possible Actions: Consider oil change and/or additional remedies for soot.

Intrusion Alert
This state is indicated when the sensor detects the presence of water.
Possible Actions: Change the oil if visibly contaminated; or test the oil in an outside lab then change.'