Follow to the 164 story; Advice please

[Nextmove]

1. Does anybody have an image of the high beam indicator bulb (or any of the dashboard warning lights, which I assume are the same bulb)? I'd rather get a bulb that fits before pulling the instrument panel out.

2. I get conflicting comments about the best ps fluid; Pentosin, Castrol TQ Dextron, and ATF type A...

Why does it matter?

I had to have a 92 BMW 3 series steering rack replaced a few years back because the previous owner used the wrong ps fluid and it ate the seals. Then the mechanic who put the new rack in found an apprentice had again put the wrong fluid in, and it had to be flushed out again. So I'm a bit nervous about the prospects of doing the wrong thing.

3. Engine oil; I get mentions of 20/50, 10/30 even 20/20. Non synthetic, I know, but it seems a bit odd to have so many options. I was going to use 20/50 Classic oil from Castrol or Halfords? Changed at least yearly or at 3-4,000 miles.

4. Auto Trans fluid for a BW 35 3 speed; Manuals say Castrol TQF or any ATF type F. Presumably definitely non synthetic and no additives?

5. And this is what I'm reasonably sure about; I should use only dot4 only brake fluid if I value the seals, I should only use genuine Volvo oil filters with non-return valve if I value the engine, and I should only use genuine Volvo coolant.

Thanks for any advice/comments/rude comments,

Leroy