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The stock DME settings on the Boxster are calibrated for the engine to run on pretty low Octane fuel -- obviously the car is base tuned to a somewhat low common denominator so if you get caught in a place with 87, you do no damage.
I think if you flash tuned the DME with Softronics or another product you could probably tell at least a little difference with a higher octane. I know that one of the side effects of Flash tuning is that you need to runner "higher" octane fuels thereafter as the tuning impacts detonation/timing. I doubt "higher" means 104 -- but probably 91+.
I think high octane fuel is to men a little bit like what anti-wrinkle cream for women: expensive hope in a bottle!
Last edited by d18mike; 01-30-2011 at 12:39 PM.
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