gasoline

So the other day I was telling a buddy of mine that regular grade fuel is more than sufficient for his daily commute. He insisted his bronco 4 door wildtrak needs only premium. I let him know that's only really needed and that's a big if only if he is towing something but for his 30 minute...

With the ridiculously high cost of gas these days, I was wondering whether anyone has tried 87 octane gas with their 2.7L Bronco. I realize there are performance benefits with the higher octane options, but not sure whether 87 can harm my Bronco. Any thoughts?