What grade of fuel do you use?

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Jan 21, 2011 | 04:07 PM

#11

ronjenx

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Joined: Feb 2008

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From: Maine

Higher octane (premium) gasoline doesn't improve performance, or give better mileage, unless your engine needs it because it's pinging under load with regular gasoline.

Jan 21, 2011 | 04:10 PM

#12

chuck_unleaded

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From: Tucson, AZ

I use regular w/manual tranny and get about 17.5. Right around there.

Jan 21, 2011 | 04:39 PM

#13

wired

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From: Calgary, Alberta

Thanks guys, just wondered if anyone ran mid-grade or premium, and if it made a difference.

Jan 21, 2011 | 05:43 PM

#14

Rafi

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From: Boston, Ma

i use 87 oct.

Jan 21, 2011 | 05:58 PM

#15

gunbo75

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From: Pleasant Hill Ca.

i use shell 87 avg. mpg. 17mpg if i use cheap gas i lose about 2 mpg.

Jan 24, 2011 | 02:56 PM

#16

NH-JK

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From: NEW HAMPSHIRE

I always use the 87..... works fine.

Jan 24, 2011 | 03:13 PM

#17

XBlacky08X

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From: Holyoke, MA

I was using 87 and then decided to try 91 and noticed I was getting an average increase of 20 miles per tank. I switched back to 87 and noticed my gas mileage slip, so since then have used 91.

Jan 24, 2011 | 04:35 PM

#18

NH-JK

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From: NEW HAMPSHIRE

Quote:

Originally Posted by XBlacky08X

I was using 87 and then decided to try 91 and noticed I was getting an average increase of 20 miles per tank. I switched back to 87 and noticed my gas mileage slip, so since then have used 91.

I may have to try this.... Interesting.

Jan 24, 2011 | 04:43 PM

#19

Enzo

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Joined: Jun 2010

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From: Howard Beach, NY

i use 87 octane, my friend swears he gets better milage with premium.....i got to try

Jan 24, 2011 | 05:04 PM

#20

Blendo

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Joined: Dec 2010

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From: Tempe, AZ

How long will a normal 'break in' require?

I've got a whopping 600 miles on my 11 Rubicon and am got 14.3mpg on the first full tank. (calculated manually. don't believe the computer)

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