What makes you think that it isn't already a fully synthetic gear oil from a leading manufacturer?
FWIW the 'ludicrously short change intervals' are probably there for two reasons;
1) there isn't much oil in there anyway and it tends to leak out. You could easily be riding around with next to nothing inside the hub; I have seen this often with badly-maintained rohloffs.
2) the oil tends to accumulate wear debris and unless it is changed at intervals it stands a pretty fair chance turning into nasty abrasive 'swarf soup'. Again I have seen this in IGHs, esp those that have not had frequent oil changes.
The Rohloff hub design suffers from having many gears and with the best will in the world, keeping track of the shifts that can be made safely under some power and those that can't is tricky. A lot of the shifts are made with square-edged dogs and these can get chipped in use if shifting is done in a clumsy fashion; you don't want that stuff floating around in the hub indefinitely, especially not in a hub that is expected to last well like a Rohloff.
cheers
Rohloff Oil - alternative
Re: Rohloff Oil - alternative
-------------------------------------------------------------------------------
~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~
-
- Posts: 1924
- Joined: 10 Jan 2014, 8:39am
Re: Rohloff Oil - alternative
What would happen if you use more oil? Would it be lost very quickly or could it provide some benefit?
Re: Rohloff Oil - alternative
IIRC in recent years Rohloff have changed their fill recommendation from 25ml to 15ml. I rather suppose that this limits the rate and possible total amount of leakage from the hub.
So yes, more oil would help to extend the drain interval (by simply diluting the crud and having more corrosion inhibitors which take longer to be consumed etc) but probably the leakage rate would be too high in many cases.
Needless to say my preferred option would be to use a semi-fluid grease but this is a whole different discussion.
cheers
So yes, more oil would help to extend the drain interval (by simply diluting the crud and having more corrosion inhibitors which take longer to be consumed etc) but probably the leakage rate would be too high in many cases.
Needless to say my preferred option would be to use a semi-fluid grease but this is a whole different discussion.
cheers
-------------------------------------------------------------------------------
~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~
Re: Rohloff Oil - alternative
Btw, Rohloff's oil is manufactured by Klueber.
Re: Rohloff Oil - alternative
Is the Shell oil synthetic?pete75 wrote: ↑4 Jun 2019, 10:34am This is the same spec as Rohloff oil. ISO 12925-1 Type CKD 68 EP. https://www.ebay.co.uk/itm/1L-Shell-Oma ... SwMBlcsHDn The flush is mainly white spirit with about 10% of the same oil.
This explains https://www.crazyguyonabike.com/forum/b ... sted=0&v=M
Re: Rohloff Oil - alternative
No.crg wrote: ↑10 Aug 2022, 4:12pmIs the Shell oil synthetic?pete75 wrote: ↑4 Jun 2019, 10:34am This is the same spec as Rohloff oil. ISO 12925-1 Type CKD 68 EP. https://www.ebay.co.uk/itm/1L-Shell-Oma ... SwMBlcsHDn The flush is mainly white spirit with about 10% of the same oil.
This explains https://www.crazyguyonabike.com/forum/b ... sted=0&v=M
'Give me my bike, a bit of sunshine - and a stop-off for a lunchtime pint - and I'm a happy man.' - Reg Baker
Re: Rohloff Oil - alternative
Probably why it costs less than Mobil SHC 626pete75 wrote: ↑11 Aug 2022, 4:02pmNo.crg wrote: ↑10 Aug 2022, 4:12pmIs the Shell oil synthetic?pete75 wrote: ↑4 Jun 2019, 10:34am This is the same spec as Rohloff oil. ISO 12925-1 Type CKD 68 EP. https://www.ebay.co.uk/itm/1L-Shell-Oma ... SwMBlcsHDn The flush is mainly white spirit with about 10% of the same oil.
This explains https://www.crazyguyonabike.com/forum/b ... sted=0&v=M
Re: Rohloff Oil - alternative
Synthetic oil is not always better.
'Give me my bike, a bit of sunshine - and a stop-off for a lunchtime pint - and I'm a happy man.' - Reg Baker