NSR-WORLD uses, and recommends Rock-Oil Synthesis 2 Injector. (It can also be pre-mixed without any issues.)
Any fully-synthetic 2-stroke oil these days (and probably most, if not all semi-synthetics) will be better than anything specified for the NSR250 15~20 years ago, however.
I've personally run TTS and never had an issue with it, and as you say, it smells great. I've also mixed it with Synthesis 2 without any problems. Personally I would use it in preference to any Silkolene product. Each to their own.
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Andy.
NSR-WORLD.COM
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