Which gearbox oil to use?

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Which gearbox oil to use?

Postby iety2004 » 31 Oct 2005, 22:26

I recently change my engine on my Kadett, whilst refitting the gearbox, quite a bit of oil came out of te back and poured on the floor,

so i thought no problem, just buy some more, i looke in the haynes manual and it said to use Castrol Hypoy,

But since then i have looked on Castrols website and it doesn't list it as a product, so im guessing they don't make.

So what gearbox oil should i use instead?

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Postby Neilyman » 31 Oct 2005, 22:36

SAE 80EP Gearbox Oil sounds like it could be a good idea :)

I think the proper name is Castrol Hypoid gear oil.

SAE 90EP for the diff, `afore you ask ;)
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Postby Doive » 01 Nov 2005, 00:37

Aye, get the Castrol EP80 stuff, seems to do the trick for mine.
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Postby Harry Flatters » 01 Nov 2005, 08:21

Hypoy Light's an old Castrol brand name for SAE 80EP.

If you're looking in Haynes for spec, look at the chapters - the bit at the front just wants to sell you stuff!

Any good quality 80EP will do.

GM spec is GM M 15/1
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