Fuel octane

Tiny
KAMPKOS104
  • MEMBER
  • 2004 LINCOLN NAVIGATOR
  • V8
  • 4WD
  • AUTOMATIC
  • 70,000 MILES
Lincoln Navigator requires 91 octane. Can middle grade be substituted? 2004 Lincoln Navigator.
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Wednesday, March 2nd, 2011 AT 3:07 AM

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Tiny
DOCFIXIT
  • EXPERT
Try it see if it knocks or performance falls off.
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Wednesday, March 2nd, 2011 AT 2:35 PM

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