What Causes Motor Oil Contamination?

Checking oil for contamination

Motor oil contamination is the result of chemical changes to the oil, in addition to the accumulation of dirt, fuel, metal particles and other contaminants.



What is Fuel Dilution (and Why is it Bad)?

Fuel dilution is bad for motor oil

Fuel dilution occurs when gas or diesel infiltrates the crankcase and contaminates the motor oil. Here’s why it’s bad and here’s what you can do about it.