Decalin fuel additive & lead Scavenger

A forum thread already exists in regards to fuel additives - See here - https://www.rotax-owner.com/en/rotax-forum/3-4-stroke-technical-questions/4577-decalin-fuel-additive

Also, keep note on what Rob Seaton has stated in that forum.

"Decalin Run-Up is "acknowledged" in SI-912-016 sec 5.2. This is as close approval as Rotax will go as they have not done any official testing themselves but instead are relying on field results.
A huge fleet (hundreds of engines with over 150,000hrs of flight time)of Rotax 9 series engines runs on avgas with Run-up and it does work and it does not harm the engine.
Rob"

Watch these and see if you still like 100LL and failing to follow good preventive maint.

https://www.youtube.com/watch?time_continue=2&v=gxUWvlAPYZk

https://www.youtube.com/watch?v=DrjW3rnERGA

https://www.youtube.com/watch?v=ioGzg1KPBUw