Bumping DaveW's post as I am starting to think about the best way to make the fuel system on my 2014 4/4 E10 resistant. I usually use Shell or Esso premium fuels but wanted to plan on an upgrade so the car is future-proofed. And especially as a mate found that the Morgan replacement fuel filler hose can take several weeks to arrive.
Wondering what the team thinks.
Simplest possible solution in my view is to use an additive. I've used Castrol Valvemaster Plus for years on my old engines, but it's not compatible with catalytic converters. There are cat-friendly additives available, such as Miller's EPS. Dead easy to carry a bottle with you and chuck some in every time you fill up. Only downside is that it adds £7 or so to the cost of a 50l tankful.
https://www.millersoils-shop.co.uk/eps-ethanol-protection
