A Field Correlation Study of the Sequence VD Engine Test

Correlation has been shown between lubricant performance in the Sequence VD Engine Test and field service with the same model 2.3L four cylinder engine used in the Sequence VD. Where inconsistencies exist between laboratory and field results, a safety factor was provided by the API SF performance limits of the Sequence VD. Insufficient information was available to show a correlation between Sequence VD performance and extended oil drain/filter change interval performance. The information generated by this evaluation could be of assistance in the future development of the Sequence VD Engine Test.