Fuel Survey

[BKK Jack]

What does the manual recommend people use? I've not seen one yet.

On page 26 it states:

Fuel recommendation: Unleaded premium gasoline, pump octane number 91 or
higher

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[Wojo]

91 or higher " recommended " i have had Acura's for 20 years, have used all kinds of fuel ( 87-89-91-93 )
& have never had any problems, even the 2002 TL type S ran on 87 with no issues & 220,000 miles, the modern
honda's ( and most cars ) will adjust the timing & you'll never know anything, i'm sure for max performance 91-93
would be the best,

 

[A3REDT]

https://techinfo.honda.com/rjanisis/pubs/OM/AH/B3S52323IOM/enu/details/131236047-12175.html

If link doesn't work, here's the excerpt from the manual:

Unleaded premium gasoline, pump octane number 91 or higher

Use of a lower octane gasoline can cause occasional metallic knocking noise in the engine and will result in decreased engine performance.
Use of a gasoline with a pump octane less than 87 can lead to engine damage.

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