Alternative differential/gearbox oil choices

ValgeKotkas

Supramania Contributor
Apr 14, 2006
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Over the pond
I was searching through the forums and didn't get any answers.

Usually the recommendation on here was to use Ford diff oil or Redline.
As I'm from Europe, then I just won't bother searching for the first one :D and I know that the latter one is hard to get, so I'd need something else. As I want a good oil, then one choice would be Castrol.

Castrols catalogue recommends me it's Castrol SAF-XJ 75W-140 http://datasheets.bp.com/bpglis/lsdsukf.nsf/0/2167B28C8CCADED78025785000803D3A/$file/618839Castrol%20SAF-XJ%2075W-140.pdf
Synthetic. "new formula", used in the Nissan GTR etc bla bla bla...

Next one would be Castrol Hypoy LS http://datasheets.bp.com/bpglis/lsdsukf.nsf/0/2D8EFDA6D1C7C6748025757C0036EC5C/$file/294218.pdf
This should be the mineral one.

I have half a bottle of the first one laying around in the garage, so I could just purchase an extra liter, but the w140 frightens me a bit. Would it be OK to use, or better no?

Liqui-moly catalogue gives me oils with the same viscosity...
My usual climate is about 68F, if that counts.

And second -
Castrol TAF-X http://datasheets.bp.com/bpglis/lsdsukf.nsf/0/0CAE37C9A6D99E7D8025785000807925/$file/618863Castrol%20TAF-X%2075W-90.pdf good to use in the R154?

The catalogue gives me SMX-S as the first one http://datasheets.bp.com/bpglis/lsdsukf.nsf/0/85085E4C90C47A0280257850007D536D/$file/618337Castrol%20SMX-S%2075W-85.pdf
Mineral again, yes?

Thanks a lot in advance,
Jüri