Hi,

don't use 2-stroke oil alone.

I did the same, as the manual states (page 17) that you can use 2-stroke oil JASO FC or better at 3% mix.
After six months the turbine would not start and after speaking to Gasper was repaired under warranty.

I bought my VT80 beginning of December 2012 and the manual is version 1.1/2012.
Gasper told me that shortly afterwards they printed a new version 1.2 stating that you should not use 2-stroke alone.

I use now the recommended mix of 3% Mobil DTE light and 1% 2-stroke oil and have so far no problems.

Ulrich