http://www.motul.fr/uk/produits/index.html said:
Motul 600 2T is a 100% synthetic, ester-based lubricant designed for high-performance 2-stroke engines operating under extreme conditions. Motul 600 2T is specifically designed for separate lubrication systems. Prediluted, it allows for an easy flow through all types of oil-pumps. It mixes instantly and evenly with the fuel, thus ensuring "total lubrication". Motul 600 2T complies with the demanding JASO FC norms. This standard, imposed by Japanese manufacturers, involves four exacting bench tests that evaluate lubricating efficiency, detergence, anti-clogging performances and reduced-exhaust-emission performances. Motul 600 2T also complies with the ISO-L-EGD norms.
EXHAUST-REDUCING PROPERTIES
- For an optimal performance of exhaust-reduction properties, the engine must run at normal temperature. - The cold increases condensation level in exhausts - emissions will be more visible in cold or damp weather. - When changing from a standard to a reduced-exhaust-emission lubricant, the latter will reach full efficiency only once the standard oil has been totally used up.