986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post

d18mike · 01-30-2011, 12:36 PM

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!

01-30-2011, 12:36 PM	#14
d18mike Registered User Join Date: Aug 2009 Location: MI Posts: 112	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.