the legal highway speed here is 55mph, and city 31mpg.

i travel alot at 31mpg, for distance of 9miles or less per trip.

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In my opinion, 60-65 MPH is the optimal balance of driving for fuel savings, and not driving the other motorists mad. If you continue to drive at those speeds, you should see MPGs around 50 or better. Even on I-5 in hilly San Diego, which from my experience seems to reduce MPG by a bit.

The HCH (both models) seems to suffer more than others from higher speeds, meaning 75-80 MPH, so traveling at those speeds should be avoided if possible.

kernk, those Bridgestones are the same ones I got on my '06 from the factory. So either they are LRR tires, or Honda shafted me.

Someday I might even beat that wascally kenny!

No whammies... no whammies... no whammies...

Thanks, Coyote. I guess I was going at a decent speed for good fuel economy. With these darn rolling hills though...I can't seem to get over 47-48 mpg. But my Civic isn't even close to being broken in yet. Only have bout 800 miles on it so far.

Be patient byebyegaspumps. My mileage went from 43, 44, 48.5 and now indicating over 53 average mpg on the fourth tank of gas. Some of that is car break in and some of that is driver break in.

OK, it doesn't say so on the Bridgestone site (unless I missed it), nor did my tire dealer mention it . . . but they work fine!

i've owned my 06hch2 for one week today. after ~190 miles, my overall fe with mostly stop-and-go driving is 41mpg, but its been improving everyday as my skill improves. learning curve. tarabell's article is required reading for this course.

Stop and go is the MPG killer. The tighter the traffic, and the more you have to stop and reaccelerate, the worse your FE will be. I've had times where I was on a 52MPG tank at around 470 miles, and the last 40 miles were HEAVY traffic jam conditions, and it dropped me all the way to 48MPG for the tank. Nothing I could do.

I seem to have stabilized on my FE. For everyday driving, with a good mix of city and highway, I average between 47-49 MPG, and for long highway trips, I get about 51-54.

I feel compelled to call foul on any FE above 50 MPG when doing at least 70 MPH. I would like to be enlightened as to how this comes about...

Alabaster Silver HcH

Don't know about above 70, but my highway tanks at 52-53 mpg came while driving 67 or 68. I can't imagine that a 2 mph increase would decrease FE by 3 mpg.