I changed my oil a few days ago in my D2 TD5 auto 2002 after 8,500km.
On Rick 130 recommendation some time ago I now use Penrite 5W-40 diesel.
I have fitted a small strong rare earth magnet to the sump plug, by just sitting it on the end as the sump is alloy so it just stays there.
I am happy to report that there was a very very small amount of powder/swarf on the plug, so little it was hardly necessary to clean it.
This is the smallest amount of deposit I have ever seen on a magnetic sump plug, as my V8 would always have a large clump.
So to me the Penrite 5W-40 seems to be doing a great job, specially considering it is a flat tappet engine with also the rubbing of the injector lobes.
Regards Philip A

