Quote:
Originally Posted by tones2SS
Also, the 93 octane will bump up HP and TQ a bit as well, if tuned for 91 octane.  |
Actually that's exactly the opposite. 93 octane will only give you better performance if you are tuned for it. The higher octane allows you to advance the timing a little more, therefore bumping power a tad. Being tuned for 91 and using 93, will most likely not change anything, and if it did, it would decrease performance.