its what kwik fit have been using all its life so it cant be that bad i guess. Probably buy some more of that then as there doesnt seem to be a right answer to the question of what other oil you can use, given that 0W30 Castrol Edge A5/B5 doesnt seem to be on sale here.
Either that or Castrol Edge 0W30 A3/B4.
Either that or Castrol Edge 0W30 A3/B4.