Like Sospan I, too, have tried to understand the chemical effects of ethanol. Not the easiest of things to do.
My car is generally in a good position. Engine good, tank good, pump good. So I looked at the tubing, fortunately nearly all have some form of coding.
My interpretation…..
1. In the tank area the MMC filler pipe is an unknown.
2. All others are PA12/ PVDF which I believe to be acceptable except
3. one which is PA11/PHLY from pump to filter (I wonder why it has this type?) An unknown.
4. At the front end the fuel pipe to the injection system is wrapped in heat shield so an unknown.
5. The markings on the evap system pipe refer to a specific Ford preformed pipe. There are other small unmarked preformed evap pipes. Given Mondeos, Fiestas (but not SCi) are ok with ethanol I’m relaxed all these pipes are ok.
So, I have a couple of unknowns to clarify but nothing of a “critical, must be sorted out now nature” whilst with E5. As always with any “rubber” tubing their condition will be inspected regularly.
That said, excepting the vagaries of the filler pipe, all others are not the hardest job to make up and replace.
