I sent an email to a bikcycle moped converting kit manufacturing company, because of a question regarding their instructions. Here is the reply
"Yes, the engine included with the package is a 2 stroke unit. It
requires a combination and mixture of regular oil and unleaded gas with
a ratio of 16:1 gas to oil for the first month or first 500Km of riding,
and 20:1 once the engine has been broken in. Regular 10w30 oil can be
used and mixed with the gas, or 2 stroke oil can also be used with the
engine.
If you do have any further questions, please feel free to get in touch
Regards,
Rob"
Am I dumb and don't know that motor oil can be mixed with gas, or is there something really weird going on here?
"Yes, the engine included with the package is a 2 stroke unit. It
requires a combination and mixture of regular oil and unleaded gas with
a ratio of 16:1 gas to oil for the first month or first 500Km of riding,
and 20:1 once the engine has been broken in. Regular 10w30 oil can be
used and mixed with the gas, or 2 stroke oil can also be used with the
engine.
If you do have any further questions, please feel free to get in touch
Regards,
Rob"