Fuel Grade Used

[RandallNeighbour]

My mechanic told me that premium fuel is truly not required in my boxster. The middle grade offered will be fine. He said the computer will shift a little and it will run the same and do no engine harm.

But, mechanics often say things like this because they don't see the need for the added expense, but don't have lots of long-term personal experience.

I know that probably 99% of the boxster owners on this list use premium at every fill up. No doubt in my mind. But I would like to hear from anyone who's consistently run the middle fuel grade in their boxster for months on end and can tell me it hurt performance, fuel economy, did engine damage, etc.

At the expense of being seen as dogmatic, I don't particularly need posts from premium advocates who feel the need to tell me why to use it and only use it. I too am a premium advocate and don't need the preaching to the choir. I just want to read what users of middle grade fuel have found, and you know who you are... the non-conformists who don't care or actually know better than what the manufacturer recommends.

For most everything I've asked my mechanic, he's told me to follow the factory recommendations for brake fluid, oil weight, etc. But on this one he just blurted it out when I told him I was expecting $2+ a gallon for premium by the time we got to CA next week.