CylvaBirch wrote:...it is the GL5 specification that is supposed to be unsuitable for mechanisms containing copper alloys
Simon.Gardiner wrote: BMW insist on a GL5-spec oil for the gearbox and bevel of the old air-head twins (eg my R100RT). I'm pretty sure there will be some bushes in there somewhere.
CFritz wrote:tested and trusted in my 4G and singles ('no leaks today, my love is gone away'): https://www.classic-oils.net/Penrite-Semi-Fluid-Grease
warm the bottle up, put it upside down on a funnel and hose to the filler, leave it for a night, et Bob est votre oncle!
Simon: And it doesn't drain down the speedo cable at the bottom of the GB gearbox...
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