COOPERCO wrote:Jan,
Understand your comments, we've run many miles in Europe in our 'S' over the last 7 years. Last time out the paint on the rear started to lift from spillage from the cap, it had never done it before so the fuels are getting more aggressive. Why should the hose break down when exposed to the fluid it's meant to be carrying?
Good question. But regarding - for example - drive shaft or steering gaiters you get nowadays... It seems the quality of rubber products has masively decreased lately.
Fuels are getting more aggresive, yes. But I myself do not believe they got so aggressive as to cause major trouble. But maybe just enough to show any flaw in the (lower) quality of materials used (today)?
It has been discussed to use a slight amount (1:100 or 1:150) of two-stroke oil with alco-fuels. Specifically oils with API TC / API TC+ specification. It's said these have a stabilising effect and prevent the build up of aggresive decomposition products in alco-fuels.
Maybe worth a try?

Modern API TC/TC+ oils should be smoke-less, so nothing to worry (and 1:100 is very little oil anyway)
Regards,
Jan
You can't have too many cars. Just too little space...