Premium fuel needed?

[SiC-0]

Thought this was a great article and explains the Rating method.

Discuss (if necessary).

http://www.sciam.com/article.cfm?art...D4F&sc=I100322 (http://www.sciam.com/article.cfm?articleID=373086C9-E7F2-99DF-385F3705197C1D4F&sc=I100322)

[R1Gurl]

Good read! I've wondered about that on occassion.