Fuel dilution issues with some gasoline direct injection (GDI) engines are driving a slight change to the Comments and Recommendations found on oil analysis reports where this condition is found.
Extensive studies of oil analysis results over the past few years have shown that, even with traditionally high levels of fuel dilution, most GDI engines will not show an elevation of wear metal levels. This resulted in oil analysis reports that were recommending unnecessary oil changes since there was no mechanical issue or unusual engine wear taking place. Because of this, Oil Analyzers Inc. has changed the Comments and Recommendations for all gasoline engines flagged for high fuel dilution on a report. The level will still be flagged, but there will no longer be a recommendation to change the oil unless elevated wear metal levels are found or the oil viscosity is greatly affected.
If you have any questions, contact Oil Analyzers Inc. at 715-395-0222.
