the new si uses 91 octane i'm assuming, yes?
Also I heard the new mustang is 30mpg, but I'm sure that's probably only if you drive it tiptoeing the gas pedalFuel Tank
The Civic’s fuel tank constructed is located forward of the multi-link rear suspension. Its lightweight polypropylene design offers reduced weight, increased capacity, and reduced possibility of evaporative emissions. The composite design also minimizes weight and allows a generous fuel capacity (its capacity is 13.2 gallons, the same as for the previous generation Civic). The Civic also incorporates a returnless fuel supply system that helps reduce vapor generation.
Yeah can't really compare the new Mustang to the new Si. Si will get better MPG over the Mustang lol
EDIT: oh yea in my comment forgot you wanted the 5.0 right
In my '00 Si depending on how -- I drive and if it's stop and go kind of driving or not, up to 400 on a full tank, my average is about 310... (being a little conservative) oh 11 gallon tank I believe.
Waiting for a '13 Honda Civic Si Sedan in Sunburst Orange Pearl (or Dyno Blue Pearl?)
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...oorrrr, the new Acura ILX???... Pass, Civic it is.
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FYI - I occasionally do new dealer trades, wherein I delivery new cars from Honda dealer to Honda dealer. I've driven about 10 new '12 Civics thus far. On average the highway mileage has been in the 40 to 41 MPG range. Both LX and EX models and usually with the ECON on, but at highway miles I don't believe that makes a difference. Realize all of these cars have only 5-15 miles on them when I pick them up. Haven't had any with odd shifting or unusual drive pattern. These readings were a result of cruise control set at 70 mph, mostly on Interstate roads.
As has been the case for sometime, Honda's written break-in procedures do not require a varying of speeds during highway use. In fact, the '12 Civic Manual doesn't mention a break-in section in the table of contents at all. There is one page where they do mention no full throttle starts or attempts for the first some hundreds of miles. They no longer mention leaving the "from the factory oil" in till the maintenance minder shows to change it.
Last edited by 9thgencivicforum; 04-30-2011 at 08:03 AM.