We all understand that we need to change oil: Whether it’s in the chip fryer or in our car engines! But What should synthetic oil change intervals be? And why does it need changing in our cars?

Strangely, the reasons for regular oil changes is common to all oils; including our fryer at home:
Oxidation - This changes the composition of the oils, and when combined with other elements, often forms harmful acidic compounds.

Contamination - This is usually from external sources (Silica), but a as the mechanical components wear, the wear particles also contaminate the oils.

During the km’s between synthetic oil changes, the lube in your cars engine gradually becomes contaminated with silica, metal particles, gasoline and other impurities. As mileage accumulates, so do the contaminants. Eventually, enough impurities accumulate that the filter cannot remove them and the oil cannot keep them in suspension.