|
It seems odd to me that you seem to need the higher octane. I know very little of newer subies, but like most new ICE cars they have a knock, MAP and O2 sensor, it seems like the computer should adjust for the altitude with out any problem. Have you compared MPG of different fuels? The placebo effect can be rather profound with car stuff (maybe have a friend fill it with an unknown grade to test). Do they recommend higher octane than "regular' in the manual?
Subaru keeps changing things for the worse. They don't even make the 2.2L engines any more, and they had too much power in my book. Now they switched the 3.0L H6 for a 3.6L H6, who needs that, a old 1.8 is enough for even a forester! When it comes time I don't think I'll get another subie (i'm on #2), unless I find a really old one with out much rust (not so easy in New England).
|