That´s right. I sure whis that someone posted a topic on what we need to change / modifie on the engine when it comes to the mecanical parts. I am not an expert on this, so i´m just working my way up on the knowledge trea.
From what i heard, the differents in a petrol and ethanol engine isnt to much, just some smal things - but, at this point i have no clue realy. It´s just my minde thinking out loude....
But we can all learn i hope. Every information is usabul, no matter what.
My consern is the metal inside the engine ... i mean, i don´t whant it to rust, thats all

. Changing the spark time is easy - it needs to be after the upper death point, usually 8-12 degres before, but whit hydrooxid it needs be 8-12 degres after ... this is important, and mixing the fuel ratio and so on and so on...
Any thought on the metal ... heck, is it a concern at all ???
- You never change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete -