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I understand that my Rockshox Revelations need 5ml of 15w oil in the bottom of each fork leg and 123 ml of 5wt in the damper.
I have seen on other forums people putting synthetic motor oil in their forks. The Enduro seal site even recommends fully synthetic motor oil over the 15 wt fork oil for the damper side. What oil should I be putting in my forks on the damper side and at the bottom of both legs. Any advice would be welcome.
This be the stuff for a lower leg service.
With the right grease for the seals as well.
The top of the list but the pic is wrong for some reason.
http://www.tftunedshox.com/Miscellaneous/Oils-and-Grease
General consensus is that more-or-less anything will do in the bath oil, and in fact motor oil (designed for its lubricating properties) might be more useful than fork oil. You can use this on the lowers of the damper side and the spring side.
However, for the actual damper itself I wouldn't put anything other than fork oil in. Fork oil is designed to keep a constant viscosity in different temperatures - I.e. your damping is the same at both the top and bottom of a DH trail.
Thanks thats very helpful. I have 5wt fork oil which I use on my motorbike and plenty of fully synthetic engine oil in the garage again from the bike, so great to know I can use that in the lower legs rather than buying 15wt fork oil which I will never use for anything else.