Pablo, I'm just as anal.
When I bought my Land Rover, I used an oil flush and disconnected the engine oil cooler lines and seperately flushed it before dumping nice new clean D1 in the sump.
FWIW, lots of vehicles leave filters in place. our turbo diesel Nissan Patrol service schedule calls for 5 000km oil changes, with 10 000km filter changes. At least it uses two filters, one full flow, one (OEM) by-pass. The new common rail turbo diesel Land Rover use calls for the centrifugal filter to be changed every oil change (20 000km), and the full flow every second change (40 000km).
I was just trying to point out the erroneous thinking of a new filter giving more efficient filtration.
Rick.
When I bought my Land Rover, I used an oil flush and disconnected the engine oil cooler lines and seperately flushed it before dumping nice new clean D1 in the sump.
FWIW, lots of vehicles leave filters in place. our turbo diesel Nissan Patrol service schedule calls for 5 000km oil changes, with 10 000km filter changes. At least it uses two filters, one full flow, one (OEM) by-pass. The new common rail turbo diesel Land Rover use calls for the centrifugal filter to be changed every oil change (20 000km), and the full flow every second change (40 000km).
I was just trying to point out the erroneous thinking of a new filter giving more efficient filtration.
Rick.