Did my 400k service... Just recently lost 5th gear so had a friend check the gearbox and it was the gasket leaking ever so slowly so I just didn't have enough gear oil... Caught that in time and serviced the gearbox, replaced the engine & gearbox mountings while we were there. Did a service over the weekend, some cost comparisons going "genuine" vs other options
Mr Cruiser for genuine parts
Air Filter $75 Transerv $15
Fuel filter $58 Z188 GUD Transerv $7.50
Oil Filter $30 Z230 Transerv $11
I tried Delo Gold or Delo 400 and after some smoke issues on a cold start, and considering what came out after the service I went back to fully synthetic, we have 2 options here, either Fuchs Super Sin $114 for 12 litres or Castrol Edge $33/5 litre = $99 for 15 litres
But first I drained the black delo gold and dropped 10 litres of Castrol red 15w40 in there and ran the engine for 10 to 15 mins to clean up all the old oil, then let that drain before putting the Castrol Edge in there, 11.4 litres
The air filter and oil filter was easy but the fuel filter was a real baasted to remove as it was locked down too tight... Luckily I had a filter wrench and it eventually came off!
Some enjoyable time spent working under the bonnet and the cruiser and I serviced it for under $150

still need to replace the timing belt and check the transfer and diff oils but it's only really needed within the next 50k .... Km not miles, but still proud!