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Modern Gearbox oils
Posted: Sun Oct 20, 2013 4:42 pm
by dopeshots
I was wondering what gearbox oil options there are these days.
Re: Modern Gearbox oils
Posted: Sun Oct 20, 2013 4:45 pm
by 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.
Re: Modern Gearbox oils
Posted: Sun Oct 20, 2013 6:12 pm
by dopeshots
I heard someone say u can use 75w90 semi synthetic?
Re: Modern Gearbox oils
Posted: Mon Oct 21, 2013 4:22 pm
by dopeshots
Re: Modern Gearbox oils
Posted: Mon Oct 21, 2013 6:36 pm
by giankx
Tried it for about 2000 miles in my 5 plate clutch. No problems at all.
Re: Modern Gearbox oils
Posted: Tue Oct 22, 2013 6:59 pm
by dopeshots
That all the info available on here then?
Re: Modern Gearbox oils
Posted: Tue Oct 22, 2013 8:50 pm
by storkfoot
Re: Modern Gearbox oils
Posted: Tue Oct 22, 2013 9:06 pm
by Tom Russell
I also use Silkolene Medium Gear Oil in my Super Monza motor.
Re: Modern Gearbox oils
Posted: Tue Oct 22, 2013 9:37 pm
by 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
Re: Modern Gearbox oils
Posted: Wed Oct 23, 2013 12:11 am
by Doom Patrol
Tom Russell wrote: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.