Fuel type oil ratio 009 or 011

[PPP]

manual says Regular grade gasoline and branded two-cycle engine oil Mix ratio 1:40 with STIHL two-cycle engine oil: 1:25 with other branded two-cycle engine oils. Question regular or supreme ? suspecting it’s supreme Due to regular gasoline having ethanol? Except manual says not to use supreme due to benzol wrecking rubber carburetor parts.
And can I mix 50:1 with newer synthetic oils or best at 40:1 ?
And does anyone know where a person could possibly get a top handle and rubber mounts hardware for 011 AVT ?
Thanks

 

[J D]

Any fresh non ethanol fuel above 87 octane.
Any quality FD rated air cooled 2 stroke oil at anywhere between 32:1 & 50:1 depending on your persuasion. Personally I run 40:1.
The likes of e-bay or one of the second hand online parts providers is probably your best bet if you can't find any carcuses with the bits you need locally. AV mounts or something generic & compatible may still be available new with a bit of searching