Best Fuel and Oil to use

[10 inch Terror]

Hi all, the time has come to fuel up and start my Lambretta rebuild for the first time. My question is, what is the best fuel and oil to use? The engine is an Imola which has been tuned to and matched to casings ect ect also what fuel oil mix ratio is the best? Thanks for any comments or advice. Pete

[Daggs]

I ran my Imola the very first time, on 5% mineral oil. When that tank was empty i went to 4% .
Later on i discovered fully synthetic 2T and have run on that at 3% ever since with no issues.
Frankly any unleaded petrol is fine.

[oldbiker]

Any oil that has JASO-FC or JAS-FD on the back of the bottle used at 3 to 4% will do the job.