Octane Fuel for Jaguar?

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Sep 12, 2010 | 12:53 PM

#41

Doug

Veteran Member

Joined: Mar 2008

Posts: 25,525

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From: Pacific Northwest USA

Quote:

Originally Posted by Dan R

Presently using US Tier 1 mid-grade. No problems after switching from "high" octane grade.
Lower octane gas is more flammable than higher (less detonation inhibitors), I imagine it helps on cold starts.

Lower octane does often alleviate cold start problems, yes. That's one reason some manufacturers recommend against using a higher octane than what's actually called for.

Cheers
DD

Sep 12, 2010 | 01:03 PM

#42

Mikey

Joined: Oct 2009

Posts: 11,057

Likes: 2,272

From: Perth Ontario Canada

Quote:

Originally Posted by Doug

Lower octane does often alleviate cold start problems, yes. That's one reason some manufacturers recommend against using a higher octane than what's actually called for.

Cheers
DD

Sorry, that's more myth and misunderstanding. See post #10