He told me that he didn't know when the last time the oil & filter was last changed. He just added when it got low.
I told him to run this batch 2,500 to 3,000 miles and we're going to change it again.
Out: PU 5w-40, MANN filter
In: M1 0w-40, MANN filter
OCI was 10,600Km with the OLM not reset between this OCI and the previous two. Total fuel consumed between this OCI and last time the OLM was reset was 3,611 Litres. Combining the three OCI's we get 25,706KM that it wanted me to run that fill
Interval was four months, severe service schedule. Collected a sample for analysis. Will run this OCI out to 6 months/7500 miles. Also, rotated tires and replaced cabin air filter with a Wix 24046.