One thing I hate about having this sale on (I work at Repco) is that people come in and think that ROSL can be used for all cars.
Ever since this catalouge started, I've had heaps of people coming in with newer/low milage cars, including about 5 people with VZ/VEs, asking if that oil is okay. Er, no.
Then despite my advice to stick with a 10w-40 or something, they ignore me and buy it because it's cheap.
However that said, ROSL is pretty good oil for what it is. Good for older cars, as you mentioned.
Need a part number? PM me.
Luke.