What grade of gas do you use?

[seventwenty]

I just received my service manual and can't seem to find the US octane requirement. You'd think it would be in the Specs. but it's not. Anyone know what page this is on? I've been using 87 as stated by the forum and most members. Just wanted to see it in print in my new 2" thick Service Manual.
Thanks

Page 136: 86 octane or higher. It's also stated in the quick reference on the next to last page of the manual.

This is a 2013 manual so a newer one may be different. Check under fuel in the index.