The info would be in your owners handbook and in some cases within the fuel filler area, sometimes on the cap. It would be the highest octane in your area, premium.
Pretty sure that the compression ratio is about 8.0:1 which is pretty low. High octane fuel would be a complete waste of money if your engine does not need to run on it but top tier fuel is a good idea as it has the detergent package that keep the engine clean. Cheapest place for top tier fuel is Costco.
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