LOW VS. HIGH OCTANE FUEL

2004 Lincoln LS

Tiny

Katelyn7785

May, 28, 2010 AT 10:14 AM

Engine Performance problem
2004 Lincoln LS 6 cyl Two Wheel Drive Automatic 57000 miles

In my gas door as well as in the handbook it says to use 91 or higher octane fuel for my car. What would happen if I used 87 as opposed to the 91+? Could it mess something up? If so what? Would it be okay to use the lower octane fuel?

Thanks

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