Just thought you may be interested in an experiment that ive been conducting over the past thirty or so years . I bought a brand new silver century plus back in 77 and ive been running the box on the prescribed 140 grade oil . In addition ive been adding an eggcupfull of "Molyslip" at each oil change . The result, after thrashing about in salt water all this time, is that the gears still have the original factory machining marks on them....ie they are untouched as far as wear is concerned . Bearings too. :
Sounds interesting, but which of their products exactly do you add to the oil?
I use their Copaslip® , assembling engines,
it prevents 'all' nuts and bolts form seizing.
Its the Molyslip gearbox additive available in syringe form, from most branches of Halfords and car accesory shops. Its a black colloidal graphite ....no doubt mixed with a few magic chemicals .
Interesting. What's the state of the aluminium castings ? Graphite and copper are a long way from ally on the electrochemical scale so serious galvanic corrosion should be expected. If not, I wonder why not ?
Certainly copper-bearing anti-seize should *never* be used on ally marine engines.
