Changed the oil and filter in the Chonda today
I put some Nulon trade strength oil flush through it and whacked 5 litres Valvoline SynPower 15W-40 in. With that, I also added a litre of Lucas Oils oil stabiliser in it, so now it should (hopefully) not chew up as much oil as it did beforehand.

Wish me luck...

Cheers,
Russ.