Which octane fuel should i use

Asked by Feb 25, 2016 at 04:27 PM about the 2005 Kia Spectra EX

Question type: General

Just want to know what would be the best fuel to
use on my car since i dont have an owners
manual?

2 Answers

70

Seeing as the 05 spectra isn't a high performance vehicle, 87 octane is fine. You can run 91 or 93 but studies have shown that there is no real benefit in running a higher octane than recommended unless you have issues with engine knocking.

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