Well, prompted by this thread, for which many thanks Charlie, I bought some expensive [as opposed to VERY expensive] Harley Davidson 20-50 oil and a filter yesterday, and did the first oil change at around 350 miles. As you would expect the oil that came out was as clean as a whistle, but then again, I wouldn't expect to see little bits of metal floating around in it.
I can report that it is an easy job, I removed the lower of the two pipes supplying the engine from the tank and just let the tank drain through, jacking the car on the offside to tip the old oil towards the tank exit, then undid the sump bolt with an appropriate allen key and drained out another cup or so, then undid the screw off filter canister on the nearside of the engine, tucked up just inside the front chassis rail, behind the blacked finned 'thingy'. I had to use an oil cannister strap on a rachet to move it, but it wasn't unduly tight, and easy enough to replace with a new HD cannister [£10 from my local HD dealer], obviously with a smear of grease on the rubber seal. Poured in 6 litres of oil and let it tick over for a few moments and hey presto, good for another 500-600 miles.
