Gas Type

Asked by GuruXGH18 Nov 30, 2018 at 01:44 PM about the 2018 Jeep Grand Cherokee Overland

Question type: General

What gas octane should I be using for my
2018 Jeep Grand Cherokee? Owners manual
says 87 but wanted to see if a higher was
recommended.

5 Answers
22,630

Guru9FSV8 answered 5 years ago

Use what it says. Higher can put deposits in engine and cost you more at same time.

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Bob answered 5 years ago

Using a higher grade will NOT put deposits in the engine. Where do you people get your information? Use what is recommended. Running higher octane than necessary will only waste your money and not cause any real performance advantage on most vehicles.

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Bob answered 5 years ago

No on deposits as premium fuels often have higher quality additive packages. Premium in a good sound engine will actually make slightly less deposits, but the difference is very small.

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