Do I use regular unleaded or unleaded plus if I live in a mountain state? See details.

Asked by 52doug52 Mar 02, 2008 at 05:25 PM about the 2006 Hyundai Elantra GLS Sedan FWD

Question type: General

My owners manual states I should use gasoline with a pump octane rating of at least 87 octane. In most places this is regular unleaded, but I live in Colorado and the octane rating for regular unleaded is 85 and plus is 87. Apparently mountain states gasoline has a lower octane rating than other states. Does this mean I have to use unleaded plus in my 2006 Elantra?

4 Answers
14,275

casper271 answered 16 years ago

87 octane, it would stay with that, what ever grade they say it is.

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84,375

littlehorn answered 16 years ago

Yes, go by the suggested octane rating (numeric) not the name of the gas in your area.

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Dktaylor32 answered 5 years ago

Gas in high altitude compresses different because the air is thinner in mountain states 85 is 87... and so on

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Guru9JV4NR answered about a year ago

I'M FROM PHILLY,I HAVE A 2023 HYUNDAI SANTA CRUZ,I WITH A 2.5 TRUBO ,WHAT GRADE GAS DO I PUT IN IT.

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