Modern Gearbox oils

[dopeshots]

I was wondering what gearbox oil options there are these days.

[soosh]

I've used Silkolene medium gearbox oil for yrs in all my motors or a medium weight gearbox oil suitable for wet clutches,it's never needed to say "ST90" on the bottle.

[dopeshots]

I heard someone say u can use 75w90 semi synthetic?

[dopeshots]

anyone tried this stuff? http://www.lambrettaspares.com/spares/o ... u0523.html

[giankx]

Tried it for about 2000 miles in my 5 plate clutch. No problems at all.

[dopeshots]

That all the info available on here then?

[storkfoot]

I use this on a 5 plate Surflex clutch___Ts1 225:

http://www.demon-tweeks.co.uk/motorcycl ... r-oil-1ltr

[Tom Russell]

I also use Silkolene Medium Gear Oil in my Super Monza motor.

[hydra]

Dopeshots,
Maxima MTL 85 is a GL3 Gear Oil, which means it has mild EP additives. These additives offer more protection to mating parts by creating a chemical barrier between Gears etc. As a comparison Rock Oil ST90 is a GL1 oil and as such as no additives other than anti-foam etc. Just to be clear, EP additives do not create Clutch slip. Another GL3 Gear Oil is Castrol's ST90.
And just to finish with a little advertising, Scooterotica, Chiselspeed and MB endorse and sell Maxima Oils.

Cheers, Paul Gillow, Oiltek

[Doom Patrol]

I also use Silkolene Medium Gear Oil in my Super Monza motor.

I've used that previously and it's good stuff. But could I find any the last time I needed some... All I could find was the light oil and that's used in MX's apparently. So, I bunged some of that in. Heaven knows what it's rated at as it's not entirely clear from the label. However, it seems fine and goes well enough on it. Obviously the same advances in engine oil are also true of gearbox oil because it looks like we can move the goal posts a little.