Re: VP trim/tilt fluid
MerCruiser states that engine oil can be used if the proper Quicksilver oil is'nt available, however I would'nt try that on a VP drive.
VP usually recomends the following, but it will depend on what drive you have, and it seems you have forgotten the obvious, to write what model sterndrive your referring to ???
From VP:
If necessary, add Volvo Penta Power Trim/Tilt and Steering
Fluid, or Dexron Automatic Transmission Fluid. Add as
required. Replace the cap and tighten securely.
I would however be careful when mixing oils, a better option is probably to replace the oil with something you can easily find where you live.