Which Fuel Stabiliser

https://www.screwfix.com/p/mountfield-ms1220-universal-fuel-stabiliser-250ml/8365j#_=p

Just don’t hurt its feelings by mentioning lawn mowers.....

 

I have used this
https://www.frost.co.uk/ethomix-corrosion-inhibitor-additive-ethanol-protection/
never had a problem

 

I'm using Star Tron, simply because it is easily available at the local boat shop.
http://www.starbrite.com/startron
More importantly, I believe, is that I fill up with ethanol free petrol. In my neck of the woods, 98 octane is still without ethanol, don't know about the UK.

 

Maybe a uk available recommendation would be good silkilene pro fst or others