What other oils could be recommended if rock oils are not available?
Here in Sunny South Africa we have Castrol, motul, etc.
Also, how long will it be before all spares for nsr's are made of "unobtainium"?
How long will it be before world legislation bans 2 strokes completely?
As for your other questions
No idea
Probably not too long. 2 stroke trail bikes are slowly being fazed out by 4-stroke sh*t heaps. Jet skis are slowly moving to supercharged and turbo 4 cly 4 strokes. 250GP will become 600's one make engine class. Snow mobiles Im not sure on (no alot of snow in Queensland AUST). 2 strokes are still the engine used by most karts around the world however
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colin wrote: What other oils could be recommended if rock oils are not available?
how long will it be before all spares for nsr's are made of "unobtainium"?
How long will it be before world legislation bans 2 strokes completely?
Castrol TTS
Who knows, it depends how often we seize and crash them.
A long time, since the thrid world has a long way to go yet! I suspect they'll just be phased out over time and be replaced with four strokes. Or maybe the new ultra effecient two strokes that are being developed at the moment? _________________ MC21SP Plaything
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