[77newell]

Just for the record, I'm using Rotella full syn in my 8V92TA. So far my oil consumption is way down compared to Delo 100 single grade. I was warned consumption would rise with multi-grade, but has yet to be true through about 4000 miles. It is correct say that this oil is not approved as there is no longer a test engine to approve any oils so no oils can be approved or will ever again be approved. There is no intention to replace the only test engine following its failure. The reality is that all current approvals are dependent upon the oil manufacturer strictly following all the formulation criteria used in the production of the oils that were originally tested and produced the resulting approval.