Type of gas


Old 09-13-05, 01:41 PM
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Type of gas

I have a 2003 lincoln navigator, and inside the fuel lid, it has a sticker that says 91+ octane. Will it cause problems if i use 87 instead?
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Old 09-13-05, 03:13 PM
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Yes it if detonates. If you are supposed to use 91 and you use 87 I would keep a very light foot on that accelerator pedal.
Old 09-13-05, 07:03 PM
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Using lower octane may affect the gas mileage.
Old 09-13-05, 07:31 PM
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Yes do not use lower octane.I know gas prices are high but you have to suck it up.
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