It's interesting as compliance is very much for some marques down to a particular engine eg 1.8L Duratec (Mondea) isn't but the 2.0L of similar era is, the Mercedes 1.8 GDI upto 2006 isn't, but all the concurrent other Mercedes engines are.
Whether all the fuel pipe work and tanks are E10 compliant maybe another matter.
Early 1990's UK Harley's had a problem mainly around 93/94 models with the carb and fuel pipework with some owners experiencing fuel leaks due to differences in the composition between UK and USA unleaded fuel
