a lot of two stroke lubes are around 7-9 cSt, Stihl Ultra is 8.45cSt, Oz Castrol TTS is 7.7 (now Power 1 Racing TTS), Motul 710 is 8.9cSt, and both of these are JASO FD and injector rated.
Interestingly the Stihl Ultra has a much higher flash point than the TTS yet both are Castrol ester based synthetics.
Whether this has any bearing on the protection of an air cooled engine I'm not sure, but the numbers are significant with TTS having a relatively low flash of 76*C and Ultra being 220*C !
Motul 710 is 88*, yet Motul 800 2T OR is 252*C.
Low flash may also mean slightly less carbon deposits, or at least a chance for them to burn more completely at part throttle/low load situations, eg. on a scooter, so may be a way to meet the cleanliness and low smoke requirements of JASO FD, but that's mere speculation on my part.
It's only the racing lubes that are a heavier viscosity too, eg Motul 800 2T Off Road is 15.5, 800 2T Road is 19.2, Mobil 1 Racing 2T is 13.9 and both Elf HTX oils are around 17.8cSt @100*C, Silkolene Pro 2 SX is 13.5, etc.
Re saws, Dolmar/Makita have always been pro saws, every bit as good as their better known Swedish and German counterparts, but here, and it looks like the US, Makita just don't market them at all. It's a bit like the [censored] child no one wants to talk about ??
My nearest Dolmar dealer is also the Husky dealer for the district (covers logging through heavy farming) and they push Husky over Dolmar as Husky really support them in advertising dollars and campaigns, whereas Makita do nothing for them, yet they've sold Dolmar for over thirty years.
A friend who is a contract fencer put me on to Dolmar, I'd seen them but never really considerd them, to me the only saws to consider were orange and grey.
Jon has had Dolmars for the past twenty three years and they've given excellent service. He has no brand loyalty as he also runs Stihl and he like them too, but he does really like his older Dolmars.
I suppose for most, a saw purchase should come down to dealer post sale support and backup rather than saw brand, it's probably the more important aspect of the purchase.
For me, I would have been happy with Stihl (miles too exxy here) Husky, Dolmar/Makita, Shinny, Solo, and Oleo Mac but I got the best deal on a 6401 Makita and I can service it myself. (yes, it will be getting a 7900 piston/barrel
)
Of course the aspect that it's cool to have a teal blue saw rather than an orange or orange/grey one in these parts didn't come into the purchase decision, it was purely $ in the finish, but some may say that it is startlingly similar to the fact I drive a Land Rover Defender rather than a Land Cruiser, Hilux or Nissan Patrol ute (pick up) like every other bloke around here.