in my opinion after a 12 year life and X thousand miles its still running strong. and i would guarantee that its never even sniffed at super. but on the other side its like an extra 2.50 a tank for super, which is considerably low if it supplies you with peace of mind out of curiosity, the car in the mag what was it? scooby? Evo? i dumped a tank of super in my sportif when i got it and it made no noticable difference to the feel of the car