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lawrencea · 11-13-07, 04:11

Ive tried 87,89,and93 octane on my car and I didnt notice any difference, so I just use 87. I do have a 4 cylinder, so it shouldnt need higher octand gas. But what I did notice was a difference between brands of gas. I seem to get 1 more mile to a gallon with Shell then BP. Does anybody know anything about Marathon gas? Is there any more gasoline that is Top Tier?

11-13-07, 04:11	#27 (permalink)
lawrencea Registered User lawrencea is offline Join Date: Feb 2003 Location: Brookfield Illinois Posts: 1,394	Re: Premium gas? Facts & Myths Ive tried 87,89,and93 octane on my car and I didnt notice any difference, so I just use 87. I do have a 4 cylinder, so it shouldnt need higher octand gas. But what I did notice was a difference between brands of gas. I seem to get 1 more mile to a gallon with Shell then BP. Does anybody know anything about Marathon gas? Is there any more gasoline that is Top Tier?