I am pretty sure that regualr 91 is safe to use as it is a reasonable new car (2005) and not a racer car, but still curious about the it, and I also tried an on-line OCR tools and the output is crap, I am guessing it is hard for OCR because it is Japanese.

Don't know what's wrong with passing Dropbox url as Image source, but it is working now, I am posting the actual url, that should work.
https://www.dropbox.com/s/7b3s4vxfmhldhw3/2014-04-12%2018.22.24S.jpg