Can I use reg. gas in my 2004 Jaguar?

Asked by Guru9SJ6S Jun 30, 2017 at 10:28 PM about the 2004 Jaguar S-TYPE 4.2L V8 RWD

Question type: General

Just wondering will it be ok to use reg. gas 87 octane?

3 Answers

F_O_R answered 7 years ago

Try it and see how it runs. If it pings go back to premium.

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Larry answered 7 years ago

Actually, in 2004, Ethonol was not out much. The engine was not designed to use anything but leaded gas. I have used 87 octane in several pre 04 cars with no aparant problem BUT I have had some fuel system problems because of it.

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