Frequently Asked Questions >> Test Results >> Diagnostic Table

Diagnostic Table

Sidebar Image
CHARACTERISTIC INTERACTION POSSIBLE CAUSE
     
Viscosity – Low High iron & high chromium Ring⁄liner wear
<∗* Fuel injector leak or malfunction
∗ Ring⁄liner wear
Oil quality
Viscosity - High High oxidation
High soot
Coolant dilution
High oil temperature
See Soot - High
* Excessive idling
* Overfueling
* Restricted air inlet
* Bearing distress
See Coolant - High
* Cracked cylinder head
* Broken head bolt
* Broken head gasket
* Bearing corrosion
* Plugged oil filter
Soot - High High iron & high chromium
High lead
Excessive idling
Overfueling
Restricted air inlet
Bearing distress
Iron - High High chromium
High soot
Ring/liner
Valve train wear
Coolant - High High sodium
High lead
High viscosity
Cracked cylinder head
Broken head bolt
Broken head gasket
Bearing corrosion
Plugged oil filter
Fuel Dilution - High Low viscosity
High iron & high chromium
Fuel injector leak or malfunction
Ring/liner wear
Copper - High Low lead
Low tin
Oil cooler interaction
Copper - High High lead
High tin
Bearing wear
Silicon - High High iron Dirt ingestion
Silicon - High Low iron Silcone gasket interaction
Additive Metals - Low Low calcium
Low magnesium
Low zinc
Low phosphorous
Poor oil quality
Total Base Number - Low High iron
High viscosity
Overextended oil drain
Poor oil quality