How often do you service your AU engine?

[Day-mow]

Originally Posted by Evgeni

Ok - tried Gulf Western 10w-30. Great for lifter noise. After 3000km's can't hear a thing from the top of the engine.
But now there is a knock from the underside of the engine.
Ok when cold and the pressure is high, but rears its ugly head when the engine is up to temp.
Thinking I might try something like a 10w-40 or a 10w to 50.
Tried to do my bit for a small aussie company. Bought some extra bottles, which I will now use for flushing.
Anyone have any recommendations to quieten down the bottom half of the motor. Want to try something else than Castrol 15w-40.

Also, has anyone ever changed bearing shells from the bottom of the engine? Just for future reference if the knock gets worse. Figured this would be easier than putting a new motor in, if it can be done.

Nulon is also an australian company. they are major sponsor of the V8 Ute series and i believe they all run Nulon fully synth. i rate it as an added bonus its quite affordable and comes in 6L bottles for top ups.